Year	US Dollars adjusted for inflation)
1959	896.7
1960	958
1961	947.8
1962	883.5
1963	911.6
1964	967.7
1965	1018
1966	1044
1967	1044
1968	1066
1969	1100
1970	1102
1971	1108
1972	1241
1973	1230
1974	1252
1975	1159
1976	1183
1977	1022
1978	988.2
1979	1070
1980	1124
1981	1090
1982	1169
1983	1079
1984	1140
1985	1192
1986	1177
1987	1124
1988	1123
1989	1077
1990	1086
1991	1113
1992	1125
1993	1126
1994	1124
1995	1130
1996	1168
1997	1188
1998	1209
1999	1222
2000	1251
2001	1274
2002	1312
2003	1345