Year	current US$
1973	9999.99977648258
1974	3000000
1975	2059999.94277954
1976	3109999.89509583
1977	5380000.11444092
1978	3599999.90463257
1979	3279999.97138977
1980	5500000
1981	9039999.96185303
1982	4949999.80926514
1983	3369999.8855590797
1984	2359999.89509583
1985	2950000.04768372
1986	5050000.19073486
1987	5559999.94277954
1988	8449999.80926514
1989	4340000.15258789
1990	4610000.1335144
1991	7230000.01907349
1992	4670000.07629395
1993	3000000
1994	4159999.8474121103
1995	2269999.98092651
1996	3869999.8855590797
1997	4349999.90463257
1998	9979999.54223633
1999	10840000.1525879
2000	9880000.11444092
2001	8579999.92370605
2002	13510000.2288818
2003	5630000.11444092
2004	1899999.97615814
2005	8060000.419616699
2006	3279999.97138977
2007	4989999.771118159
2008	6070000.17166138
2009	4260000.228881841
2010	19659999.8474121
2011	15420000.076293899
2012	2089999.9141693101
2013	1590000.0333786
2014	2549999.95231628
2015	1490000.0095367401
2016	180000.00715255702
2017	10300000.1907349
2018	17600000.3814697
2019	27450000.762939498
2020	25940000.5340576
2021	6139999.8664856