Year	current US$
1975	589999.973773956
1976	1000000
1977	3849999.90463257
1978	6719999.79019165
1979	8239999.77111816
1980	14090000.1525879
1981	12560000.4196167
1982	8430000.30517578
1983	7219999.79019165
1984	9550000.19073486
1985	4309999.94277954
1986	7519999.98092651
1987	9609999.65667725
1988	8670000.07629395
1989	8270000.45776367
1990	6309999.94277954
1991	3660000.08583069
1992	8189999.580383301
1993	4409999.84741211
1994	4219999.79019165
1995	10840000.1525879
1996	6719999.79019165
1997	7969999.79019165
1998	7130000.11444092
1999	2150000.09536743
2000	11090000.1525879
2001	8000000
2002	3599999.90463257
2003	5110000.1335144
2004	3289999.96185303
2005	2619999.8855590797
2017	39999.9991059303
2019	9999.99977648258