Year US Dollars adjusted for inflation) 1800 578 1801 578 1802 577 1803 577 1804 576 1805 576 1806 575 1807 574 1808 574 1809 573 1810 573 1811 572 1812 571 1813 571 1814 570 1815 570 1816 569 1817 569 1818 568 1819 567 1820 567 1821 566 1822 566 1823 565 1824 565 1825 564 1826 563 1827 563 1828 562 1829 562 1830 561 1831 561 1832 560 1833 559 1834 559 1835 558 1836 558 1837 557 1838 557 1839 556 1840 555 1841 555 1842 554 1843 554 1844 553 1845 553 1846 552 1847 552 1848 551 1849 550 1850 550 1851 549 1852 549 1853 548 1854 548 1855 547 1856 547 1857 546 1858 545 1859 545 1860 544 1861 544 1862 543 1863 543 1864 542 1865 542 1866 541 1867 540 1868 540 1869 539 1870 539 1871 538 1872 538 1873 537 1874 537 1875 536 1876 536 1877 535 1878 534 1879 534 1880 533 1881 533 1882 532 1883 532 1884 531 1885 531 1886 530 1887 530 1888 529 1889 529 1890 528 1891 527 1892 527 1893 526 1894 526 1895 525 1896 525 1897 524 1898 524 1899 523 1900 523 1901 525 1902 527 1903 529 1904 531 1905 533 1906 535 1907 537 1908 539 1909 542 1910 544 1911 551 1912 574 1913 595 1914 621 1915 726 1916 710 1917 784 1918 843 1919 897 1920 778 1921 843 1922 777 1923 835 1924 843 1925 844 1926 877 1927 917 1928 924 1929 875 1930 829 1931 833 1932 834 1933 1008 1934 1006 1935 1096 1936 1197 1937 1321 1938 1391 1939 1257 1940 1418 1941 1438 1942 1429 1943 1449 1944 1386 1945 650 1946 662 1947 703 1948 761 1949 822 1950 867 1951 729 1952 784 1953 1018 1954 1080 1955 1146 1956 1208 1957 1322 1958 1498 1959 1452 1960 1544 1961 1624 1962 1592 1963 1577 1964 1592 1965 1630 1966 1616 1967 1646 1968 1673 1969 1643 1970 1697 1971 1699 1972 1730 1973 1751 1974 1782 1975 1844 1976 1851 1977 1884 1978 1809 1979 2015 1980 1887 1981 2073 1982 2180 1983 2138 1984 2205 1985 2121 1986 2106 1987 2142 1988 2198 1989 2257 1990 2076 1991 1973 1992 1745 1993 1619 1994 1605 1995 1442 1996 1393 1997 1230 1998 1267 1999 1377 2000 1287 2001 1368 2002 1375 2003 1405 2004 1410 2005 1464 2006 1461 2007 1392 2008 1427 2009 1407 2010 1393 2011 1397 2012 1393 2013 1392 2014 1391 2015 1390 2016 1389 2017 1388 2018 1387 2019 1386 2020 1385 2021 1386 2022 1391 2023 1400 2024 1415 2025 1435 2026 1459 2027 1487 2028 1518 2029 1551 2030 1585 2031 1620 2032 1656 2033 1693 2034 1731 2035 1769 2036 1808 2037 1848 2038 1889 2039 1931 2040 1974