Year	current US$
1960	12319999.6948242
1961	9770000.45776367
1962	8760000.22888184
1963	16940000.5340576
1964	19040000.915527303
1965	15859999.6566772
1966	17069999.6948242
1967	15550000.1907349
1968	16040000.9155273
1969	9300000.19073486
1970	17290000.915527303
1971	9140000.34332275
1972	7130000.11444092
1973	10869999.8855591
1974	7760000.228881841
1975	7309999.94277954
1976	6269999.98092651
1977	6050000.19073486
1978	6960000.03814697
1979	300000.011920929
1981	70000.0002980232
1982	-50000.0007450581
1983	-90000.0035762787
1984	-180000.00715255702
1985	-189999.99761581398
1986	-259999.990463257
1987	-319999.99284744303
1988	-330000.013113022
1989	-90000.0035762787
1990	-50000.0007450581
1991	289999.99165535
1992	430000.00715255697
1993	2069999.9332428002
1994	159999.99642372102
1995	289999.99165535
1996	189999.99761581398
1997	-79999.9982118607
1998	259999.990463257
1999	180000.00715255702
2000	170000.00178813902
2001	170000.00178813902
2002	90000.0035762787