Year	US Dollars adjusted for inflation)
1950	1803
1951	1827
1952	1943
1953	2036
1954	2100
1955	2180
1956	2214
1957	2350
1958	2428
1959	2534
1960	2670
1961	2943
1962	2996
1963	3100
1964	3117
1965	3198
1966	3225
1967	3321
1968	3569
1969	3709
1970	3976
1971	4250
1972	4604
1973	5069
1974	5277
1975	5482
1976	5903
1977	5976
1978	6038
1979	6326
1980	6669
1981	6293
1982	6270
1983	5965
1984	6056
1985	6515
1986	6919
1987	7215
1988	7079
1989	7337
1990	6834
1991	6788
1992	6665
1993	6774
1994	6977
1995	6895
1996	6954
1997	7030
1998	6964
1999	7018
2000	7194
2001	7108
2002	6950
2003	7204