U.S. Treasury Securities Outstanding1 $ Billions
2
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2007 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2008 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Bills 777.4 715.4 691.0 737.1 646.9 811.2 888.7 928.8 1,001.2 960.7 940.8 999.5
Notes 2,112.3 2,106.0 1,960.7 1,784.5 1,557.3 1,413.9 1,580.9 1,905.7 2,157.1 2,360.2 2,440.5 2,487.4
Bonds 555.0 587.3 621.2 643.7 626.5 602.3 588.5 564.2 539.4 516.4 530.5 558.4
TIPS 33.0 67.6 100.7 121.2 140.1 146.8 176.2 245.9 328.6 411.1 471.4
Total 3,444.7 3,441.7 3,340.5 3,266.0 2,951.9 2,967.5 3,204.9 3,574.9 3,943.6 4,165.9 4,322.9 4516.7
928.2 977.6 1,029.1 940.9 915.5 865.7 888.7 1,010.4 954.6 934.1 1,030.9 999.5
2,458.6 2,459.4 2,467.4 2,481.7 2,461.2 2,469.1 2,492.0 2,448.2 2,456.1 2,480.5 2,463.7 2,487.4
530.6 540.4 540.4 540.4 547.2 547.1 547.0 560.9 560.9 560.9 558.4 558.4
410.8 411.3 412.5 430.9 434.8 437.7 455.9 456.9 456.8 469.3 470.9 471.4
4,328.2 4,388.7 4,449.4 4,393.9 4,358.7 4,319.6 4,383.6 4,476.4 4,428.4 4,444.8 4,523.9 4,516.7
980.0 1,121.0
2,502.8 2,477.3
558.4 571.7
471.9 471.7
4,513.1 4,641.7
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Includes marketable securities only. Includes inflation-indexed notes and bonds
Source: U.S. Treasury