Year	current US$
1971	19999.9995529652
1972	159999.99642372102
1973	349999.99403953605
1974	189999.99761581398
1975	219999.998807907
1976	189999.99761581398
1977	1559999.9427795399
1978	1720000.02861023
1979	200000.00298023198
1980	180000.00715255702
1981	189999.99761581398
1983	740000.009536743
1986	430000.00715255697
1987	889999.985694885
1988	3480000.01907349
1989	2569999.9332428
1990	3130000.1144409203
1991	720000.028610229
1992	5210000.03814697
1993	9949999.80926514
1994	12369999.8855591
1995	26600000.3814697
1996	12340000.1525879
1997	42939998.626709
1998	25469999.3133545
1999	9359999.65667725
2000	10170000.076293899
2001	71949996.9482422
2002	88279998.7792969
2003	77370002.746582
2004	90309997.55859381
2005	79089996.3378906
2006	87339996.3378906
2007	88819999.6948242
2008	111970001.22070299
2009	147929992.67578098
2010	115000000
2011	108480003.35693401
2012	68500000
2013	79949996.9482422
2014	50750000
2015	55439998.626709
2016	63619998.9318848
2017	53400001.5258789
2018	54909999.8474121
2019	67099998.474121094
2020	51830001.8310547
2021	31549999.237060502
2022	28270000.4577637