Year US Dollars adjusted for inflation) 1800 839 1801 839 1802 839 1803 839 1804 839 1805 839 1806 840 1807 840 1808 840 1809 840 1810 840 1811 840 1812 840 1813 840 1814 841 1815 841 1816 841 1817 841 1818 841 1819 841 1820 841 1821 844 1822 847 1823 850 1824 853 1825 856 1826 859 1827 862 1828 865 1829 867 1830 870 1831 873 1832 876 1833 879 1834 882 1835 885 1836 888 1837 891 1838 894 1839 897 1840 900 1841 903 1842 907 1843 910 1844 913 1845 916 1846 919 1847 922 1848 925 1849 928 1850 931 1851 935 1852 938 1853 941 1854 944 1855 947 1856 951 1857 954 1858 957 1859 960 1860 964 1861 967 1862 970 1863 973 1864 977 1865 980 1866 983 1867 987 1868 990 1869 993 1870 997 1871 1000 1872 1004 1873 1007 1874 1010 1875 1014 1876 1017 1877 1021 1878 1024 1879 1028 1880 1031 1881 1035 1882 1038 1883 1042 1884 1045 1885 1049 1886 1052 1887 1056 1888 1060 1889 1063 1890 1067 1891 1070 1892 1074 1893 1078 1894 1081 1895 1085 1896 1089 1897 1092 1898 1096 1899 1100 1900 1104 1901 1107 1902 1111 1903 1115 1904 1119 1905 1122 1906 1126 1907 1130 1908 1134 1909 1138 1910 1142 1911 1145 1912 1149 1913 1153 1914 1218 1915 1287 1916 1360 1917 1436 1918 1517 1919 1603 1920 1693 1921 1792 1922 1895 1923 2005 1924 2121 1925 2244 1926 2374 1927 2511 1928 2656 1929 2810 1930 2973 1931 3145 1932 3326 1933 3519 1934 3722 1935 3937 1936 4165 1937 4406 1938 4660 1939 4930 1940 5215 1941 5516 1942 5834 1943 6171 1944 6528 1945 6905 1946 7304 1947 7725 1948 8171 1949 8643 1950 9142 1951 9669 1952 10227 1953 10817 1954 11441 1955 12101 1956 12799 1957 13538 1958 14318 1959 15144 1960 16017 1961 16941 1962 17917 1963 18950 1964 20042 1965 21197 1966 22418 1967 23710 1968 25076 1969 26520 1970 28047 1971 27072 1972 29840 1973 35665 1974 51151 1975 53537 1976 39076 1977 37285 1978 37704 1979 34106 1980 18341 1981 16209 1982 16435 1983 15878 1984 15867 1985 14091 1986 13761 1987 13382 1988 15947 1989 16321 1990 17115 1991 16075 1992 14649 1993 12495 1994 13037 1995 14083 1996 15163 1997 15142 1998 15111 1999 14026 2000 13628 2001 14049 2002 14846 2003 13814 2004 14696 2005 14805 2006 14323 2007 14241 2008 13371 2009 12089 2010 12408 2011 12952 2012 13264 2013 12841 2014 13277 2015 14388 2016 14251 2017 14815 2018 15255 2019 15557 2020 16058 2021 16565 2022 17069 2023 17563 2024 18043 2025 18508 2026 18961 2027 19407 2028 19850 2029 20296 2030 20748 2031 21209 2032 21679 2033 22159 2034 22650 2035 23152 2036 23665 2037 24189 2038 24725 2039 25273 2040 25833