Alternative Social Security Medicare (net) Medicaid Net Interest All other spending Revenue Total federal spending Unified surplus/deficit Debt held by the public Percent of GDP 2008 4.3 2.8 1.4 1.8 10.7 17.7 21.0 -3.2 40.8 2009 4.8 3.1 1.8 1.2 16.6 15.5 27.5 -11.9 54.9 2010 4.9 3.1 2.0 1.2 13.2 16.0 24.3 -8.3 60.6 2011 4.8 3.3 1.8 1.4 12.3 17.4 23.6 -6.2 64.1 2012 4.8 3.2 1.7 1.7 11.4 18.0 22.8 -4.8 66.3 2013 4.8 3.4 1.7 2.1 11.2 18.2 23.2 -5.0 68.4 2014 4.8 3.6 1.8 2.5 11.0 18.2 23.6 -5.4 71.1 2015 4.8 3.6 1.8 2.8 10.8 18.4 23.9 -5.5 74.0 2016 4.9 3.8 1.9 3.1 10.8 18.4 24.4 -6.0 77.3 2017 5.0 3.8 1.9 3.3 10.7 18.5 24.7 -6.2 80.6 2018 5.1 3.7 2.0 3.6 10.6 18.5 25.1 -6.6 82.3 2019 5.2 4.0 2.0 4.0 10.7 18.5 25.9 -7.3 86.6 2020 5.3 4.1 2.0 4.2 10.7 18.4 26.2 -7.8 91.2 2021 5.4 4.3 2.1 4.4 10.7 18.4 26.8 -8.3 96.1 2022 5.4 4.4 2.1 4.6 10.7 18.5 27.2 -8.7 101.2 2023 5.5 4.5 2.2 4.9 10.7 18.5 27.8 -9.3 106.7 2024 5.6 4.6 2.2 5.1 10.7 18.5 28.2 -9.7 112.5 2025 5.7 4.8 2.3 5.4 10.7 18.5 28.8 -10.3 118.8 2026 5.7 4.9 2.3 5.7 10.7 18.5 29.3 -10.8 125.3 2027 5.8 5.1 2.4 6.0 10.7 18.5 30.0 -11.5 132.3 2028 5.9 5.2 2.4 6.4 10.7 18.6 30.6 -12.0 139.7 2029 5.9 5.4 2.5 6.7 10.7 18.6 31.2 -12.7 147.5 2030 6.0 5.6 2.5 7.1 10.7 18.6 31.8 -13.3 155.6 2031 6.1 5.7 2.6 7.5 10.7 18.6 32.5 -13.9 164.2 2032 6.1 5.8 2.7 7.9 10.7 18.6 33.2 -14.6 173.2 2033 6.1 6.0 2.7 8.4 10.7 18.6 33.8 -15.3 182.5 2034 6.2 6.1 2.8 8.8 10.7 18.6 34.5 -16.0 192.1 2035 6.2 6.2 2.8 9.3 10.7 18.6 35.2 -16.5 202.0 2036 6.2 6.4 2.9 9.7 10.7 18.6 35.9 -17.3 212.4 2037 6.2 6.5 3.0 10.2 10.7 18.6 36.6 -18.0 223.1 2038 6.2 6.6 3.0 10.8 10.7 18.6 37.2 -18.6 234.1 2039 6.2 6.7 3.1 11.3 10.7 18.6 38.0 -19.4 245.5 2040 6.2 6.8 3.1 11.8 10.7 18.6 38.6 -20.0 257.1 2041 6.2 6.8 3.2 12.4 10.7 18.6 39.4 -20.8 269.1 2042 6.2 6.9 3.2 13.0 10.7 18.6 40.0 -21.4 281.4 2043 6.2 7.0 3.3 13.6 10.7 18.6 40.8 -22.2 294.1 2044 6.2 7.1 3.3 14.2 10.7 18.6 41.5 -22.9 307.0 2045 6.2 7.2 3.4 14.8 10.7 18.6 42.2 -23.6 320.2 2046 6.2 7.2 3.4 15.5 10.7 18.6 43.0 -24.4 333.8 2047 6.2 7.3 3.5 16.1 10.7 18.6 43.8 -25.2 347.7 2048 6.2 7.4 3.5 16.8 10.7 18.6 44.5 -25.9 362.0 2049 6.2 7.4 3.6 17.5 10.7 18.6 45.4 -26.8 376.8 2050 6.2 7.5 3.6 18.2 10.7 18.6 46.2 -27.5 391.9 2051 6.2 7.6 3.7 18.9 10.7 18.6 47.1 -28.4 407.4 2052 6.2 7.6 3.7 19.7 10.7 18.6 47.9 -29.2 423.2 2053 6.2 7.7 3.8 20.4 10.7 18.6 48.8 -30.2 439.4 2054 6.2 7.8 3.8 21.2 10.7 18.6 49.7 -31.0 455.9 2055 6.2 7.8 3.9 22.0 10.7 18.6 50.6 -32.0 472.8 2056 6.2 7.9 3.9 22.8 10.7 18.7 51.5 -32.9 490.0 2057 6.2 8.0 4.0 23.7 10.7 18.7 52.5 -33.9 507.7 2058 6.2 8.1 4.0 24.5 10.7 18.7 53.5 -34.8 525.7 2059 6.2 8.1 4.0 25.4 10.7 18.7 54.4 -35.8 544.1 2060 6.2 8.2 4.1 26.3 10.7 18.7 55.5 -36.8 562.9 2061 6.2 8.3 4.1 27.2 10.7 18.7 56.5 -37.8 582.0 2062 6.2 8.4 4.2 28.1 10.7 18.7 57.6 -38.9 601.6 2063 6.2 8.4 4.2 29.0 10.7 18.7 58.6 -39.9 621.5 2064 6.2 8.5 4.3 30.0 10.7 18.7 59.7 -41.0 641.9 2065 6.2 8.6 4.3 31.0 10.7 18.7 60.8 -42.1 662.6 2066 6.2 8.7 4.4 32.0 10.7 18.7 62.0 -43.2 683.8 2067 6.2 8.7 4.4 33.0 10.7 18.7 63.1 -44.3 705.4 2068 6.2 8.8 4.4 34.1 10.7 18.7 64.2 -45.4 727.3 2069 6.2 8.9 4.5 35.1 10.7 18.7 65.4 -46.7 749.7 2070 6.2 9.0 4.5 36.2 10.7 18.7 66.6 -47.8 772.5 2071 6.2 9.0 4.6 37.3 10.7 18.8 67.8 -49.1 795.8 2072 6.2 9.1 4.6 38.4 10.7 18.8 69.0 -50.3 819.4 2073 6.2 9.2 4.7 39.6 10.7 18.8 70.3 -51.6 843.5 2074 6.2 9.2 4.7 40.7 10.7 18.8 71.5 -52.8 868.0 2075 6.2 9.3 4.8 41.9 10.7 18.8 72.9 -54.1 893.0 2076 6.2 9.3 4.8 43.1 10.7 18.8 74.2 -55.4 918.3 2077 6.3 9.4 4.8 44.3 10.7 18.8 75.4 -56.6 944.1 2078 6.3 9.5 4.9 45.6 10.7 18.8 76.8 -58.0 970.3 2079 6.3 9.5 4.9 46.8 10.7 18.8 78.2 -59.3 997.0 2080 6.3 9.6 5.0 48.1 10.7 18.8 79.6 -60.8 1024.1 2081 6.3 9.6 5.0 49.4 10.7 18.8 80.9 -62.1 1051.6 2082 6.3 9.7 5.1 50.7 10.7 18.8 82.4 -63.6 1079.7 2083 6.3 9.7 5.2 52.1 10.7 18.8 83.9 -65.0 1108.1 Source: GAO's March 2009 analysis based on the Trustees' assumptions.