Year	US Dollars adjusted for inflation)
1800	1081
1801	1081
1802	1082
1803	1083
1804	1084
1805	1085
1806	1086
1807	1087
1808	1088
1809	1089
1810	1090
1811	1091
1812	1091
1813	1092
1814	1093
1815	1094
1816	1095
1817	1096
1818	1097
1819	1098
1820	1099
1821	1106
1822	1114
1823	1122
1824	1129
1825	1137
1826	1145
1827	1153
1828	1161
1829	1169
1830	1177
1831	1185
1832	1193
1833	1201
1834	1209
1835	1217
1836	1226
1837	1234
1838	1243
1839	1251
1840	1260
1841	1268
1842	1277
1843	1286
1844	1295
1845	1304
1846	1313
1847	1322
1848	1331
1849	1340
1850	1349
1851	1358
1852	1367
1853	1377
1854	1386
1855	1396
1856	1405
1857	1415
1858	1425
1859	1435
1860	1444
1861	1454
1862	1464
1863	1474
1864	1484
1865	1495
1866	1505
1867	1515
1868	1526
1869	1536
1870	1547
1871	1562
1872	1578
1873	1594
1874	1610
1875	1626
1876	1642
1877	1658
1878	1675
1879	1692
1880	1709
1881	1726
1882	1743
1883	1761
1884	1778
1885	1796
1886	1814
1887	1833
1888	1851
1889	1869
1890	1888
1891	1907
1892	1926
1893	1946
1894	1965
1895	1985
1896	2005
1897	2025
1898	2045
1899	2066
1900	2086
1901	2107
1902	2129
1903	2150
1904	2171
1905	2193
1906	2215
1907	2237
1908	2260
1909	2283
1910	2305
1911	2341
1912	2376
1913	2412
1914	2333
1915	2257
1916	2183
1917	2111
1918	2212
1919	2318
1920	2429
1921	2613
1922	2807
1923	2938
1924	3073
1925	3211
1926	3352
1927	3496
1928	3644
1929	3796
1930	3951
1931	4109
1932	4272
1933	4438
1934	4608
1935	4782
1936	4960
1937	5143
1938	5329
1939	5520
1940	5715
1941	5915
1942	6119
1943	6327
1944	6541
1945	6759
1946	6982
1947	7210
1948	7443
1949	7681
1950	7925
1951	7020
1952	7364
1953	8366
1954	9473
1955	10095
1956	9722
1957	9752
1958	8247
1959	8816
1960	8914
1961	9357
1962	9566
1963	9490
1964	9893
1965	10683
1966	11194
1967	10458
1968	11545
1969	11578
1970	12143
1971	13050
1972	14408
1973	14805
1974	14986
1975	10391
1976	4366
1977	7513
1978	7702
1979	8714
1980	9236
1981	9305
1982	5900
1983	7135
1984	10341
1985	12939
1986	12211
1987	14301
1988	10349
1989	5986
1990	7860
1991	10668
1992	10873
1993	11318
1994	11920
1995	12453
1996	12933
1997	12548
1998	12910
1999	12678
2000	12536
2001	12538
2002	12367
2003	12149
2004	12329
2005	12273
2006	12248
2007	13297
2008	14424
2009	15636
2010	16281
2011	15695
2012	14970
2013	14075
2014	13492
2015	13087
2016	12974
2017	13172
2018	13438
2019	13709
2020	13935
2021	14169
2022	14416
2023	14680
2024	14962
2025	15263
2026	15581
2027	15914
2028	16260
2029	16617
2030	16984
2031	17360
2032	17744
2033	18137
2034	18539
2035	18950
2036	19370
2037	19799
2038	20238
2039	20686
2040	21144