Year	current US$
1969	6959999.9524653
1970	6020000.03494322
1971	7870000.0140816
1972	9230000.0730902
1973	9050000.03613532
1974	10280000.0105053
1975	12100000.1132488
1976	13900000.102818
1977	17469999.9392033
1978	20429999.8879433
1979	17799999.743699998
1980	5020000.01072884
1981	22190000.012517
1982	20309999.9427795
1983	29910000.026226003
1984	22959999.7997284
1985	34199999.9284744
1986	31479999.9594688
1987	40329999.7448921
1988	26880000.293254897
1989	37970000.4458427
1990	34039999.961853
1991	41689999.9380112
1992	31260000.2884865
1993	51010000.3182888
1994	35610000.073909804
1995	79970000.1478195
1996	35529999.7925758
1997	55870000.0047684
1998	36610000.073909804
1999	58310000.777244605
2000	64830000.63896181
2001	49180000.126361795
2002	65240000.0095367
2003	69950000.5245209
2004	62370000.0047684
2005	75639999.8664856
2006	44860000.2527237
2007	63850000.143051095
2008	20319999.9723583
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0