Year	US Dollars adjusted for inflation)
1950	741.9
1951	726.3
1952	771.8
1953	798.7
1954	809.5
1955	808.2
1956	798.6
1957	802.3
1958	843.9
1959	849.3
1960	870.4
1961	894.4
1962	918.9
1963	984
1964	1023
1965	992.8
1966	966.1
1967	1018
1968	1061
1969	1152
1970	1154
1971	1187
1972	1159
1973	1163
1974	1126
1975	1179
1976	1204
1977	1252
1978	1316
1979	1285
1980	1350
1981	1392
1982	1427
1983	1456
1984	1519
1985	1581
1986	1633
1987	1702
1988	1785
1989	1841
1990	1897
1991	1867
1992	1897
1993	1933
1994	1976
1995	2104
1996	2181
1997	2244
1998	2368
1999	2593
2000	2644
2001	2724
2002	2847
2003	2990