Year	current US$
1976	3000000
1977	4000000
1978	6000000
1979	4000000
1980	6000000
1981	8000000
1982	11000000
1983	10000000
1984	4000000
1985	4000000
1986	8000000
1987	6000000
1988	4000000
1989	3000000
1990	5000000
1991	5000000
1992	5000000
1993	4000000
1994	5000000
1995	6000000
1996	7000000
1997	8000000
1998	5239999.771118159
1999	3000000
2000	2900000.09536743
2001	4280000.20980835
2002	5010000.228881841
2003	5650000.09536743
2004	6690000.05722046
2005	12149999.6185303
2006	7090000.15258789
2007	7099999.90463257
2008	23799999.237060502
2009	36409999.8474121
2010	36729999.5422363
2011	8819999.69482422
2012	3240000.00953674
2013	5139999.8664856
2014	6579999.92370605
2015	11760000.2288818
2016	18930000.3051758
2017	24879999.1607666
2018	3910000.08583069
2019	1049999.95231628
2020	469999.998807907
2021	1559999.9427795399
2022	2369999.8855590797