Year	US Dollars adjusted for inflation)
1800	1080
1801	1081
1802	1081
1803	1081
1804	1081
1805	1081
1806	1081
1807	1082
1808	1082
1809	1082
1810	1082
1811	1082
1812	1082
1813	1083
1814	1083
1815	1083
1816	1083
1817	1083
1818	1083
1819	1084
1820	1084
1821	1085
1822	1086
1823	1088
1824	1089
1825	1090
1826	1092
1827	1093
1828	1095
1829	1096
1830	1097
1831	1099
1832	1100
1833	1101
1834	1103
1835	1104
1836	1106
1837	1107
1838	1108
1839	1110
1840	1111
1841	1112
1842	1114
1843	1115
1844	1117
1845	1118
1846	1119
1847	1121
1848	1122
1849	1124
1850	1125
1851	1126
1852	1128
1853	1129
1854	1131
1855	1132
1856	1134
1857	1135
1858	1136
1859	1138
1860	1139
1861	1141
1862	1142
1863	1143
1864	1145
1865	1146
1866	1148
1867	1149
1868	1151
1869	1152
1870	1153
1871	1164
1872	1175
1873	1186
1874	1197
1875	1208
1876	1219
1877	1230
1878	1242
1879	1253
1880	1265
1881	1277
1882	1288
1883	1300
1884	1312
1885	1325
1886	1337
1887	1349
1888	1362
1889	1374
1890	1387
1891	1400
1892	1413
1893	1426
1894	1439
1895	1453
1896	1466
1897	1480
1898	1493
1899	1507
1900	1521
1901	1535
1902	1549
1903	1564
1904	1578
1905	1593
1906	1608
1907	1623
1908	1638
1909	1653
1910	1668
1911	1682
1912	1696
1913	1710
1914	1662
1915	1616
1916	1571
1917	1527
1918	1556
1919	1585
1920	1616
1921	1646
1922	1677
1923	1681
1924	1685
1925	1690
1926	1694
1927	1698
1928	1702
1929	1707
1930	1674
1931	1642
1932	1611
1933	1581
1934	1551
1935	1521
1936	1493
1937	1512
1938	1532
1939	1552
1940	1572
1941	1593
1942	1614
1943	1635
1944	1657
1945	1679
1946	1701
1947	1724
1948	1747
1949	1770
1950	1794
1951	1686
1952	2074
1953	2295
1954	2569
1955	2261
1956	2609
1957	2697
1958	2260
1959	2276
1960	2247
1961	2210
1962	2932
1963	2578
1964	2894
1965	2810
1966	2503
1967	2580
1968	2598
1969	3009
1970	2582
1971	2744
1972	3317
1973	2933
1974	3521
1975	4071
1976	4372
1977	4178
1978	4398
1979	4411
1980	4777
1981	5055
1982	4987
1983	4886
1984	4531
1985	4653
1986	4284
1987	4234
1988	4654
1989	3749
1990	3809
1991	3991
1992	4399
1993	4498
1994	4693
1995	4894
1996	5246
1997	5385
1998	5620
1999	5291
2000	5188
2001	5232
2002	5474
2003	5341
2004	5546
2005	5738
2006	5888
2007	6094
2008	6246
2009	6497
2010	6603
2011	6358
2012	6300
2013	5000
2014	4300
2015	3500
2016	3300
2017	3100
2018	2900
2019	2900
2020	2913
2021	2926
2022	2939
2023	2952
2024	2978
2025	3004
2026	3044
2027	3085
2028	3133
2029	3181
2030	3237
2031	3295
2032	3361
2033	3428
2034	3496
2035	3566
2036	3645
2037	3726
2038	3809
2039	3893
2040	3979