interest
                              FEDERAL REVENUE, DEBT, GDP, AND INTEREST
                                      (in billions of dollars)

                 Gross                   Treasury
               Federal            Debt /     Debt   % of   % of   % of      Net   % of   % of   % of
Year  Revenue     Debt      GDP  Revenue Interest    Rev   Debt    GDP Interest    Rev   Debt    GDP
----  -------  -------  -------  ------- --------  -----  -----  ----- --------  -----  -----  -----
1962     99.7    302.9    567.6     3.04      9.1   9.15   3.01   1.61      6.9   6.91   2.27   1.21
1963    106.6    310.3    598.7     2.91      9.9   9.29   3.19   1.65      7.7   7.26   2.49   1.29
1964    112.6    316.1    640.4     2.81     10.7   9.47   3.37   1.67      8.2   7.28   2.59   1.28
1965    116.8    322.3    687.1     2.76     11.3   9.71   3.52   1.65      8.6   7.35   2.67   1.25
1966    130.8    328.5    752.9     2.51     12.0   9.18   3.66   1.60      9.4   7.17   2.86   1.25
1967    148.8    340.4    811.8     2.29     13.4   9.00   3.93   1.65     10.3   6.90   3.02   1.26
1968    153.0    368.7    866.6     2.41     14.6   9.53   3.95   1.68     11.1   7.25   3.01   1.28
1969    186.9    365.8    948.6     1.96     16.6   8.88   4.54   1.75     12.7   6.80   3.47   1.34
1970    192.8    380.9   1012.2     1.98     19.3  10.01   5.07   1.91     14.4   7.46   3.78   1.42
1971    187.1    408.2   1079.9     2.18     21.0  11.20   5.13   1.94     14.8   7.93   3.64   1.37
1972    207.3    435.9   1178.3     2.10     21.8  10.54   5.01   1.85     15.5   7.47   3.55   1.31
1973    230.8    466.3   1307.6     2.02     24.2  10.47   5.18   1.85     17.3   7.52   3.72   1.33
1974    263.2    483.9   1439.3     1.84     29.3  11.14   6.06   2.04     21.4   8.15   4.43   1.49
1975    279.1    541.9   1560.7     1.94     32.7  11.70   6.03   2.09     23.2   8.33   4.29   1.49
1976    298.1    629.0   1736.5     2.11     37.1  12.44   5.89   2.14     26.7   8.97   4.25   1.54
1977    355.6    706.4   1974.3     1.99     41.9  11.79   5.93   2.12     29.9   8.41   4.23   1.51
1978    399.6    776.6   2217.0     1.94     48.7  12.19   6.27   2.20     35.5   8.87   4.57   1.60
1979    463.3    829.5   2500.7     1.79     59.9  12.92   7.22   2.39     42.6   9.20   5.14   1.70
1980    517.1    909.0   2726.7     1.76     74.8  14.47   8.23   2.74     52.5  10.16   5.78   1.93
1981    599.3    994.8   3054.7     1.66     95.5  15.94   9.60   3.13     68.8  11.47   6.91   2.25
1982    617.8   1137.3   3227.6     1.84    117.2  18.98  10.31   3.63     85.0  13.76   7.48   2.63
1983    600.6   1371.7   3440.7     2.28    128.7  21.42   9.38   3.74     89.8  14.95   6.55   2.61
1984    666.5   1564.6   3840.2     2.35    153.9  23.09   9.83   4.01    111.1  16.67   7.10   2.89
1985    734.1   1817.4   4141.5     2.48    178.9  24.37   9.84   4.32    129.5  17.64   7.12   3.13
1986    769.2   2120.5   4412.4     2.76    190.3  24.74   8.97   4.31    136.0  17.68   6.41   3.08
1987    854.4   2346.0   4647.1     2.75    195.2  22.85   8.32   4.20    138.6  16.22   5.91   2.98
1988    909.3   2601.1   5008.6     2.86    214.0  23.54   8.23   4.27    151.8  16.69   5.84   3.03
1989    991.2   2867.8   5400.5     2.89    240.8  24.30   8.40   4.46    169.0  17.05   5.89   3.13
1990   1032.0   3206.3   5735.4     3.11    264.7  25.65   8.26   4.62    184.3  17.86   5.75   3.21
1991   1055.0   3598.2   5935.1     3.41    285.4  27.05   7.93   4.81    194.4  18.43   5.40   3.28
1992   1091.3   4001.8   6239.9     3.67    292.3  26.78   7.30   4.68    199.3  18.27   4.98   3.19
1993   1154.4   4351.0   6575.5     3.77    292.5  25.34   6.72   4.45    198.7  17.21   4.57   3.02
1994   1258.6   4643.3   6961.3     3.69    296.3  23.54   6.38   4.26    202.9  16.12   4.37   2.92
1995   1351.8   4920.6   7325.8     3.64    332.4  24.59   6.75   4.54    232.1  17.17   4.72   3.17
1996   1453.1   5181.5   7694.1     3.57    343.9  23.67   6.64   4.47    241.1  16.59   4.65   3.13
1997   1579.3   5369.2   8182.4     3.40    355.8  22.53   6.63   4.35    244.0  15.45   4.54   2.98
1998   1721.8   5478.2   8627.9     3.18    363.8  21.13   6.64   4.22    241.1  14.00   4.40   2.79
1999   1827.5   5605.5   9125.3     3.07    353.5  19.34   6.31   3.87    229.8  12.57   4.10   2.52
2000   2025.2   5628.7   9709.8     2.78    361.9  17.87   6.43   3.73    222.9  11.01   3.96   2.30
2001   1991.2   5769.9  10057.9     2.90    359.5  18.05   6.23   3.57    206.2  10.35   3.57   2.05
2002   1853.2   6198.4  10389.2     3.34    332.5  17.94   5.36   3.20    170.9   9.22   2.76   1.65
2003   1782.3   6760.0  10838.8     3.79    318.1  17.85   4.71   2.94    153.1   8.59   2.26   1.41
2004   1880.1   7354.7  11552.8     3.91    321.7  17.11   4.37   2.78    160.2   8.52   2.18   1.39

2005*  2052.8   8031.4  12227.4     3.91    347.9  16.95   4.33   2.85    177.9   8.67   2.22   1.46
2006*  2177.6   8707.6  12907.3     4.00    392.4  18.02   4.51   3.04    211.1   9.69   2.42   1.64
2007*  2344.2   9350.1  13617.2     3.99    440.2  18.78   4.71   3.23    245.0  10.45   2.62   1.80
2008*  2507.0   9948.6  14349.0     3.97    483.6  19.29   4.86   3.37    272.4  10.87   2.74   1.90
2009*  2650.0  10543.5  15111.4     3.98    523.3  19.75   4.96   3.46    294.4  11.11   2.79   1.95
2010*  2820.9  11137.3  15906.2     3.95    561.3  19.90   5.04   3.53    313.9  11.13   2.82   1.97

----------------------------------------------------------------------------------------------------
* estimated
Note: Net Interest equals the Gross Interest on Treasury Debt Securities minus
      the interest received by the trust funds and minus two items labelled
      "Other interest" and "Other investment income".
Source: Budget of the United States Government, FY 2006, Historical Tables,
        tables 1.1, 3.2, 7.1, and 10.1

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