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					                                                            World Population Prospects, the 2010 Revision                                                                              World Population Prospects, the 2010 Revision                                                                                 World Population Prospects, the 2010 Revision                                                                         World Population Prospects, the 2010 Revision                                                                     World Population Prospects, the 2010 Revision                                                                           World Population Prospects, the 2010 Revision                                                                             World Population Prospects, the 2010 Revision                                                                           World Population Prospects, the 2010 Revision                                                                             World Population Prospects, the 2010 Revision                                                                     World Population Prospects, the 2010 Revision                                                                            World Population Prospects, the 2010 Revision
                                                            Figure 1: Estimated and projected world population according to different variants, 1950-2100 (billions)                  Figure 2: Estimated and projected population by major area, medium variant , 1950-2100 (billions)                             Figure 3: Projected population by development region, medium variant, 1950-2100 (billions)                            Figure 4: Population as percentage of population in 2010, medium variant, 1950-2100                               Figure 5: Distribution of the world population by major area, medium variant, 1950, 2010, 2050 and 2100                 Figure 6: Average annual rate of change of the world population by projection variant (percentage)                        Figure 7: Average annual rate of population change by major area, medium variant (percentage)                           Figure 8: Population by Total Fertility (millions)                                                                        Figure 9: Number of Countries by Total Fertility                                                                  Figure 10: Total fertility by major regions, 1950-2100 (children per woman)                                              Figure 11: Population of the 20 most populous countries in 1950, 2010, 2050 and 2100 (millions)

                                                            Source: United Nations, Department of Economic and Social Affairs, Population                                             Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population               Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population       Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population   Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population         Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population           Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population         Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population           Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population   Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population          Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population
                                                            Division (2011): World Population Prospects: The 2010 Revision. New York                                                  Prospects: The 2010 Revision. New York                                                                                        Prospects: The 2010 Revision. New York                                                                                Prospects: The 2010 Revision. New York                                                                            Prospects: The 2010 Revision. New York                                                                                  Prospects: The 2010 Revision. New York                                                                                    Prospects: The 2010 Revision. New York                                                                                  Prospects: The 2010 Revision. New York                                                                                    Prospects: The 2010 Revision. New York                                                                            Prospects: The 2010 Revision. New York                                                                                   Prospects: The 2010 Revision. New York
                                                            (Updated: 15 April 2011)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             1950                                                                  2010




World Total Population By Variant


Source: United Nations, Department of Economic and
Social Affairs, Population Division (2011): World
Population Prospects: The 2010 Revision. New York
(Updated: 15 April 2011)


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on each figure when copying any material.                   Key result: The world population is expected to keep on rising during the 21st century, although its                      Key result: Asia will remain the most populous major area in the world during the 21st century but                            Key result: The population of the least developed countries is projected to surpass the population of                 Key result: The population of the least developed countries is projected to triple by the end of the                                                                                                                                      Key result: Currently, the world population is growing at a rate of 1.1 per cent per year, but in most                    Key result: According to the medium variant, the average annual rate of population change is                            Key result: In 2010 about 48 percent of the world population had an average total fertility of less                       Key result: In the great majority of countries total fertility will be below 2.1 children per woman in            Key result: Between 2005 -2010 and 2095 -2100 total fertility is projected to decline significantly in
                                                            growth is projected to experience a marked deceleration during the second half of the century.                            Africa will gain ground as its population more than triples, passing from 1 billion in 2011 to 3.6 billion in                 the more developed regions by 2035.                                                                                   century according to the medium variant. None of the other development groups are projected to                                                                                                                                            projection variants this average annual rate of change is expected to decline in the future.                              projected to decline in all major areas, except in Europe, and to remain high in Africa.                                than 2.1 children per woman.                                                                                              2100.                                                                                                             Africa, Asia, Latin America and the Caribbean and Oceania.
                                                                                                                                                                                      2100.                                                                                                                                                                                                                                               experience such sharp increases in population size.
                                                            According to the medium variant of the 2010 Revision of World Population Prospects, the world population is                                                                                                                                             By 2100, the population of the least developed countries as a group is projected to be twice that of the more                                                                                                                                                                                                                                                   According to the medium variant, the annual rate of population change of the world population is projected to             In 2010-2015, Africa has the highest rate of population change at 2.3 per cent per year. It is followed by Oceania,     Using population and total fertility estimates and projections for five  -year periods, this figure displays the number   Using annually interpolated population and total fertility estimates and projections this figure displays the     Figure 10 displays estimated and projected changes in total fertility by major region between the five -year
                                                            expected to increase from 6.9 billion in mid   -2011 to 9.3 billion in 2050 and to reach 10.1 billion by 2100.            In 2011, 60 per cent of the world population lived in Asia and 15 per cent in Africa. Until the early 1990s, Europe           developed regions according to the medium variant. According to the medium variant, the population of the                                                                                                                                                                                                                                                       decline from 1.1 per cent in 2010-2015 to 0.4 per cent in 2045-2050 and to drop further to a low 0.06 per cent            with 1.5 per cent per year. Asia, Northern America and Latin America and the Caribbean have annual rates of             of people by level of total fertility from 1950 to 2100. More than one billion of the more than 2.5 billion world         number of countries by level of total fertility from 1950 to 2100.                                                periods of 1950-1955 and 2095-2100. As can be seen from this chart, the World Population Prospects project
                                                                                                                                                                                                                                                                                                                                                                                                                                          Between 1950 and 2010, the population of the least developed countries quadrupled and it is expected to
                                                            Realization of this projection is contingent on the continued decline of fertility in countries that still have           had been the second most populous region of the world, but in 1996 the population of Africa surpassed that of                 more developed regions will remain largely unchanged between 2011 and 2100, passing from 1.2 billion in                                                                                                                                                                                                                                                         per year in 2095-2100. Despite that sharp decline, the rate of population change in the medium variant remains            change ranging from 0.9 to 1.1 per cent per year. Europe has the lowest rate of population change, at 0.1 per           population in 1950 had a total fertility of 6 or more children. This was equivalent to about 44 percent of the world                                                                                                                        total fertility to decline between now and the end of the century in all major regions, except Northern America
                                                                                                                                                                                                                                                                                                                                                                                                                                          further triple between 2010 and 2100.
                                                            fertility above replacement level (that is, countries where women have, on average, more than one daughter)               Europe for the first time. Africa’s population is growing very rapidly, at 2.3 per cent per year during 2010 -2015, a         2011 to 1.3 billion in 2100. In contrast, the population of the least developed countries, as a group, is projected                                                                                                                     Key result: According to the medium variant, the future distribution of the world population by major                   positive throughout the 21st century, implying that the world population grows continually. The trend in the              cent per year. At some point during 2010 -2100, the rates of population change in Asia, Latin America and the           population. By 2010, the population with a total fertility of more than 6 children had declined to 119 million or  -                                                                                                                        and Europe. A very significant fertility decline is projected for Africa - from 4.64 children per woman in 2005 -        Key result: In 2100 ten out of the twenty most populous countries will be in Africa. Nigeria will be the
                                                            and an increase of fertility in the countries that have below   -replacement fertility. In addition, mortality would      rate more than double that of Asia's population (1.0 per cent per year). The population of Africa first surpassed a           to more than triple, passing from 0.85 billion in 2011 to 2.7 billion in 2100. Such contrasting trends are shaped                                                                                                                       area is likely to change significantly.                                                                                                                                                  -
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    annual rate of population change is similar between the instantreplacement scenario and the medium variant,               Caribbean, and Europe become negative, indicating that their populations decline. Europe is the first to see its        only 1.7 percent of the world population in 2010. The population with sub      -replacement fertility of less than 2.1                                                                                                                      2010 to 2.13 children per woman in 2095 -2100. The figure also illustrates that significant differences in total         third most populous country- replacing the United States of America.
                                                                                                                                                                                                                                                                                                                                                                                                                                          The population in other less developed countries also quadrupled between 1950 and 2010, but is not expected
                                                            have to decline in all countries. If fertility were to remain constant in each country at the level it had in 2005  -     billion in 2009 and is expected to add another billion in just 35 years (by 2044), even as its fertility drops from 4.6       by the very different fertility levels that characterize those two groups of countries today. In the more                                                                                                                                                                                                                                                       with both maintaining a positive rate of change throughout 2010    -2100. By 2095-2100, the annual rate of                rate of population change drop below zero (in 2020 -2025), yet it is also the only major area where the annual          children per woman, on the other hand, had increased to almost 3.3 billion in 2010- up from 71 million in 1950.                                                                                                                             fertility between regions are projected to still exist in the 2045 -2050 period. Africa's average total fertility is
                                                                                                                                                                                                                                                                                                                                                                                                                                          to increase by more than 27 per cent during the rest of the century.
                                                            2010, the world population could reach nearly 27 billion by 2100. A future fertility that remains just half a child       children per woman in 2005 -2010 to 3.0 children per woman in 2040 -2045. Asia's population, which is currently               developed regions, average fertility is estimated at 1.7 children per woman in 2005  -2010, a number                                                                                                                                    Over the past century, Asia has been consistently the most populous major area of the world and is expected to          population change in the instant-replacement scenario is nearly double that in the medium variant (0.12 per cent          rate of change increases after a period of decline. Nevertheless, Europe’s rate of population change remains            Almost 48 percent of the world population in 2010 had a total fertility of less than 2.1 children per woman.                                                                                                                                projected to be almost 3 children, while Europe's and Asia's total fertility is projected to be at about 1.9 children.   In 1950 there were seven European countries among the twenty most populous countries of the world (including
                                                            above that projected in the medium variant would result in a population of 15.8 billion in 2100 (high variant),           4.2 billion, is expected to peak around the middle of the century (it is projected to reach 5.2 billion in 2052) and          considerably below replacement level. Although the medium variant projects increasing fertility for the more                                                                                                                            remain so during the 21st century. Therefore, it accounts for the largest share of the world population,                vs. 0.06 per cent). The high variant, whose fertility remains just half a child above the fertility in the medium         below zero between 2020 and 2095, indicating a lengthy period of population decline. In Asia and Latin America          According to the medium variant projection of the 2010 Revision of the World Population Prospects total fertility                                                                                                                                                                                                                                                    the Russian Federation). There were only two European nations among the group of the twenty most populous
                                                                                                                                                                                                                                                                                                                                                                                                                                          The population in the more developed regions increased the least between 1950 and 2010 and is entering a
                                                            but if fertility remains just half a child below that of the medium variant, the world population in 2100 could be        to start a slow decline thereafter. Consequently, whereas in 2100 Asia’s population was four times as large as                developed regions as a whole, their average fertility does not surpass replacement level during the whole                                                                                                                               amounting to 60 per cent today and expected to decline to 55 per cent in 2050. During the second part of the            variant over the projection period, has annual rates of population change that stabilize at 0.8 per cent per year         and the Caribbean, the rate of population change becomes negative in 2055 -2060 and remains below zero until            will continue to decline. By 2050 almost 78 percent of the world population will have a total fertility of less than                                                                                                                                                                                                                                                 nations in 2010 - Germany and the Russian Federation. China and India were, by far, the most populous countries
                                                                                                                                                                                                                                                                                                                                                                                                                                          period of overall stabilization, being expected to grow minimally by just 8 per cent by 2100 according to the
                                                            6.2 billion, the same size it had at the start of the 21st century. Today, 42 per cent of the world population lives      that of Africa (4.2 billion vs. 1.0 billion), by 2100 it may be only 28 per cent higher than that of Africa (4.6 billion in   projection period (2010-2100). Among the least developed countries, average fertility was estimated at 4.4                                                                                                                              21st century, Asia is expected to lose its claim to having the majority of the world’s inhabitants, because its share   after 2060. Such high rates of change lead to rapid growth in the population, which keeps on gaining a billion            2100. By 2095-2100, both major areas are projected to be declining at a rate of 0.3 per cent per year. Africa,          2.1 children per woman. This share will temporarily decline until 2070, due to the assumption of slightly                                                                                                                                                                                                                                                            in the World in 2010.
                                                                                                                                                                                                                                                                                                                                                                                                                                          medium variant.
                                                            in low-fertility countries, that is, countries where women are not having enough children to ensure that, on              Asia vs. 3.6 billion in Africa). The populations of all other major areas combined (the Americas, Europe and                  children per woman in 2005-2010 and is not expected to reach replacement level before the end of the                                                                                                                                    of the world population is projected to drop below 50 per cent (it is projected at 45 per cent in 2100). Whereas        people every 10 or 11 years during the whole 21st century. The low variant, which maintains fertility half a child        Northern America and Oceania maintain positive rates of population change over the whole projection period.             increasing fertility among very-low fertility countries. However, by the end of the century, more than 82 percent                                                                                                                                                                                                                                                    Already by 2050 there will be only one European country among the twenty most populous nations- the Russian
                                                            average, each woman is replaced by a daughter who survives to the age of procreation (i.e., their fertility is            Oceania) amount to 1.7 billion in 2011 and are projected to rise to nearly 2 billion in 2060 and then decline very            century, implying that the population of the group will continue rising until 2100, as is shown in the figure                                                                                                                           between 1950 and 1996, Europe was the second most populous region, Africa overtook it in 1996 and now                   below that of the medium variant, produces below     -replacement fertility in all countries and results in a declining   Africa’s rate of change drops from 2.3 per cent per year in 2010 -2015 to 0.6 per cent per year in 2095 -2100, when     of the world population will have a total fertility of less than 2.1 children per woman.                                                                                                                                                                                                                                                                             Federation. India will have become the most population country- with some 400 million people more than China.
                                                                                                                                     -
                                                            below replacement level). Another 40 per cent lives in intermediatefertility countries where each woman is                slowly, remaining still near 2 billion by the turn of the century. Among them, the population of Europe is                    above. The population in other less developed countries, which include most of the most populous countries                                                                                                                              accounts for nearly 15 per cent of the world population, up from 9 per cent in 1950. Furthermore, because Africa        global population, as indicated by the negative rates of population change that it projects after 2040   -2045. By        it is still the highest among all major areas. Oceania’s rate of change declines from 1.5 per cent per year in 2010 -                                                                                                                                                                                                                                                                                                                                                                        By the end of the century ten out of the twenty most populous countries will be in Africa (Nigeria, the United
                                                            having, on average, between 1 and 1.5 daughters, and the remaining 18 per cent lives in high       -fertility countries   projected to peak around 2025 at 0.74 billion and decline thereafter. The population of Latin America and the                 (China, India, Indonesia and Brazil), is expected to reach a maximum around 2060, gaining approximately 1.4                                                                                                                             is projected to maintain a rapid population growth over the rest of the century, its population is expected to          2095-2100, the low variant yields a world population that is declining at a rapid rate of 0.8 per cent per year           2015 to 0.2 per cent per year in 2095 -2100 and that for Northern America drops from 0.9 per cent per year in                                                                                                                                                                                                                                                                                                                                                                                Republic of Tanzania, the Democratic Republic of the Congo, Uganda, Kenya, Ethiopia, Zambia, Niger, Malawi,
                                                            where the average woman has more than 1.5 daughter Even if the fertility of each country would reach                      Caribbean is projected to reach a maximum around 2057 at 0.75 billion, but those of Northern America and                      billion inhabitants between 2010 and the time when it peaks. It is then projected to start a slow decline.                                                                                                                              account for almost 24 per cent of the world population in 2050 and for 35 per cent in 2100.                                                                                                           -
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    which, if maintained, would halve the population in 85 years. The constantfertility variant is presented for              2010-2015 to 0.2 per cent per year in 2095 -2100. As a consequence, the populations of these major areas                                                                                                                                                                                                                                                                                                                                                                                     Sudan). Nigeria will be the third most populous country in the world. China's population will be some 600 million
                                                            replacement level in 2010-2015, the world population would continue to increase over the rest of the century,             Oceania are projected to continue increasing, albeit slowly, until 2100. By the turn of the century, Africa’s                                                                                                                                                                                                                                                         By contrast, the share of Europe is expected to decline: from nearly 22 per cent in 1950 to less than 7 per cent in     illustrative purposes. It shows that maintaining fertility constant at the level it had in each country in 2005 -2010     increase markedly: by a factor of 3.5 in Africa, 1.8 in Oceania and 1.5 in Northern America. Furthermore, the                                                                                                                                                                                                                                                                                                                                                                                smaller than that of India.
                                                            reaching 9.1 billion in 2050 and 9.9 billion in 2100 (see the “instant replacement variant” in the figure above    ).     population, which in 2011 was equivalent to 61 per cent of the population of the Americas, Europe and Oceania                                                                                                                                                                                                                                                         2100. The joint share of Northern America plus Latin America and the Caribbean is not expected to change                would result in a population whose annual rate of population change would keep on increasing, leading to a new            realization of these projections would produce populations in these major areas that would still have a significant
                                                                                                                                                                                      taken together, might surpass them by 83 per cent. In 2100, Africa could be five times as populous as Northern                                                                                                                                                                                                                                                        markedly, passing from 13.6 per cent in 2010 to 12.0 per cent in 2100.                                                  “population explosion”, an outcome unlikely to be sustainable                                                             potential for growth, especially that in Africa.
                                                                                                                                                                                      America and over 4 times more populous than either Europe or Latin America and the Caribbean
                                                                                       World Population Prospects, the 2010 Revision                                                                     World Population Prospects, the 2010 Revision                                                                        World Population Prospects, the 2010 Revision                                                                               World Population Prospects, the 2010 Revision
he 20 most populous countries in 1950, 2010, 2050 and 2100 (millions)                 Figure 12: Median age of the population by major region (years)                                                   Figure 13: Population change between 2010 and 2100 by major region (millions)                                        Figure 14: Population of Europe, Africa and Sub-Saharan Africa (millions)                                                   Figure 15a: Population age 15-24 by major regions (millions)
                                                                                                                                                                                                                                                                                                                                                                                                                                                         Figure 15b: Population age 15-24 by major regions (thousands)
ment of Economic and Social Affairs, Population Division (2011): World Population     Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population   Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population      Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population             Source: United Nations, Department of Economic and Social Affairs, Population Division (2011): World Population
New York                                                                              Prospects: The 2010 Revision. New York                                                                            Prospects: The 2010 Revision. New York                                                                               Prospects: The 2010 Revision. New York                                                                                      Prospects: The 2010 Revision. New York
                                                              2010                                                                                                                                                                                                                                                                                                                                                                                             15a




                                                              2100




                                                                                                                                                                                                                                                                                                                                                                                                                                                               15b
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 1950                   2010               2050              2100
                                                                                                                                                                                                                                                                                                                                                                                                                                                          Africa                                43,355                205,336            391,394           504,877
                                                                                                                                                                                                                                                                                                                                                                                                                                                          Asia                                 263,389                754,015            631,424           502,304
                                                                                                                                                                                                                                                                                                                                                                                                                                                          Europe                                94,926                 93,820             74,571            76,032
                                                                                                                                                                                                                                                                                                                                                                                                                                                          Latin America, Caribbean              31,631                106,186             92,156            73,138
                                                                                                                                                                                                                                                                                                                                                                                                                                                          Northern America                      25,666                 47,936             55,050            60,709
                                                                                                                                                                                                                                                                                                                                                                                                                                                          Oceania                                1,966                   5,666              7,335             7,664
                                                                                                                                                                                                                                                                                                                                                                                                                                                          World                                460,933               1,212,960          1,251,931         1,224,724
                                                                                      Key result: Population ageing is projected for all major regions of the world.                                    Key result: Population is projected to increase primarily in Africa.                                                 Key result: The population in Sub-Saharan Africa has outgrown that of Europe and is projected to be
                                                                                                                                                                                                                                                                                                                             more than five times larger than the population of Europe in 2100.
                                                                                      Figure 12 displays the median age of the population in Africa, Asia, Europe, Latin America and the Caribbean,     Figure 13 displays the population change by major region between 2010 and 2100. By the end of the 21st                                                                                                                                           Key result: Of all major geographical regions, Africa will have the largest number of young people age
                                                                                      Northern America and Oceania. The median age divides the population in two parts of equal size, that is, there    century Europe's population is projected to have declined by 63 million people as compared to 2010. It is the only   Figure 14 displays the total population of Europe, Africa and Sub  -Saharan Africa. In 1950, Africa's population was        15 to 24 in 2100.
                                                                                      are as many persons with ages above the median as there are with ages below the median. The population in         major region of the world for which a population decline is projected over this period. According to the medium      about 40% of the population of Europe. In 2010 Africa's population had already outgrown the population of
                                                                                      Europe has been ageing since 1950, when the median age was 29.7 years. By 2040 the median age in Europe will      variant of the 2010 World Population Prospects, Africa's population is projected to increase by almost 2.6 billion   Europe by almost 40%. By 2050, Africa will have three times as many people as Europe; and by 2100 the                       Figure 15a displays the number of young people age 14 to 24 by major geographical areas. The number of young
of the twenty most populous countries will be in Africa. Nigeria will be the          peak at 46.5 years and decline subsequently to 44.7 years by the end of the 21st century. In Northern America,    people between 2010 and 2100. This assumes that the continent will experience an average fertility decline from      population in Africa is projected to be much more than 5 times the population of Europe. It should be noted that            people in the world has increased from 461 million in 1950 to more than 1.2 billion in 2010 and is expected to
                                                                                      Oceania, Latin America and the Caribbean, as well as in Asia the median the population had the youngest median    4.64 children per woman in the 2005 -2010 period to 2.13 children in the 2095 -2100 period. If fertility would       this projected population increase in Africa is based on the assumption that fertility will fall significantly in Africa.   increase only slightly from now on to around 1.25 billion in 2100. From all major regions, Africa had, by far, the
                                                                                      age in 1970. Since then, the median age has been increasing and will not reach its maximum before 2100. By        decline only half a child less (from 4.64 to 2.62 children per woman), Africa's population would increase by 4.2                                                                                         -
                                                                                                                                                                                                                                                                                                                             In fact, we project average total fertility to decline from 4.64 children in the 20052010 period to 2.89 children in                                                                                               -
                                                                                                                                                                                                                                                                                                                                                                                                                                                         largest relative increase in the number of young people. Their number increased 4.7fold between 1950 and 2010
opean countries among the twenty most populous countries of the world (including      then, all these regions will have a median age of between 43.3 years and 46.6 years.                              billion between 2010 and 2100. Compared to Africa, the population increase in Asia, Northern America, Latin          the 2045-2050 period and further to 2.13 in the 2095-2100 period. Without this very significant fertility decline,          - from 43 to 205 million. According the 2010 Revision of the World Population Prospects the number of young
 e were only two European nations among the group of the twenty most populous         The median age of the population in Africa was at its lowest in 1975 and 1985- at only 17.5 years. Due to a       America and Oceania is projected to be quite small between 2010 and 2100. Asia's population is projected to          Africa's population would increase even further.                                                                            people in Africa is projected to further increase to 391 million in 2050 and 505 million in 2100. At that time, Africa
d the Russian Federation. China and India were, by far, the most populous countries   fertility decline in many African countries the median age has already increase to 19.7 years. If the fertility   increase by 432 million, Northern America by 182, Latin America by 97 and Oceania by 29 million.                                                                                                                                                 will have more than twice as many young people as Europe, Latin America and the Caribbean, Northern America
                                                                                      declines further as projected, Africa's population will age significantly. By 2050 the median age of Africa's                                                                                                                                                                                                                                                      and Oceania combined. In fact, Africa will have more young people in 2100 than Asia. In Asia, the number of
only one European country among the twenty most populous nations - the Russian        population will be 26.4 years, and by 2100 the median age is projected to reach 35.9 years.                                                                                                                                                                                                                                                                        people age 15 to 24 increased 2.9-fold between 1950 and 2010 and stands at 745 million. In 2010, 62 percent of
                                    with some 400 million people more than China.                                                                                                                                                                                                                                                                                                                                                                        all young people age 15 to 24 lived in Asia. However, this will change significantly in coming decades, as their
out of the twenty most populous countries will be in Africa (Nigeria, the United                                                                                                                                                                                                                                                                                                                                                                         number will decline to 631 million in 2050 and 502 million in 2100. Between 2010 and 2100 Asia's population of
ocratic Republic of the Congo, Uganda, Kenya, Ethiopia, Zambia, Niger, Malawi,                                                                                                                                                                                                                                                                                                                                                                           young people will decline by 252 million. In Latin America and the Caribbean the increase in the number of young
d most populous country in the world. China's population will be some 600 million                                                                                                                                                                                                                                                                                                                                                                        people was 3.4 fold between 1950 and 2010 and stands now at 106 million. Their number will decline to 73
                                                                                                                                                                                                                                                                                                                                                                                                                                                         million in 2100. In Europe, the number of young people age 15 to 24 (slightly) declined from 95 million in 1950 to
                                                                                                                                                                                                                                                                                                                                                                                                                                                         94 million in 2010. Their number will further decline to 75 million in 2050. After 2050, the number of young
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ).
                                                                                                                                                                                                                                                                                                                                                                                                                                                         people is projected to very slightly increase to 76 million in 2100 (since we assume a slight increase in fertility

				
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