Year	current US$
1975	500000
1976	1240000.0095367401
1977	5659999.84741211
1978	5800000.19073486
1979	6690000.05722046
1980	7469999.79019165
1981	7219999.79019165
1982	7769999.98092651
1983	7000000
1984	6010000.228881841
1985	6630000.11444092
1986	5190000.05722046
1987	7929999.82833862
1988	11449999.8092651
1989	8319999.694824221
1990	8909999.84741211
1991	11579999.923706101
1992	10500000
1993	12050000.1907349
1994	8949999.80926514
1995	4940000.05722046
1996	4039999.96185303
1997	2200000.04768372
1998	7769999.98092651
1999	50000.0007450581
2000	1700000.04768372
2001	59999.9986588955
2002	59999.9986588955
2003	79999.9982118607
2004	300000.011920929
2005	200000.00298023198
2006	150000.005960464
2007	479999.989271164
2008	289999.99165535
2009	610000.014305115
2010	100000.00149011599
2014	129999.995231628
2015	39999.9991059303
2016	39999.9991059303
2021	119999.997317791
2022	59999.9986588955