Year	current US$
1970	9999.99977648258
1972	29999.999329447703
1973	109999.999403954
1974	239999.994635582
1975	209999.993443489
1976	2299999.95231628
1977	5900000.09536743
1978	8350000.38146973
1979	5369999.88555908
1980	12539999.961853001
1981	6349999.90463257
1982	3589999.91416931
1983	7960000.03814697
1984	15569999.6948242
1985	15449999.8092651
1986	19969999.3133545
1987	22399999.6185303
1988	23229999.5422363
1989	29200000.762939498
1990	35450000.762939505
1991	28200000.762939498
1992	30799999.237060502
1993	24180000.3051758
1994	20860000.6103516
1995	33419998.168945298
1996	42819999.6948242
1997	33490001.678466797
1998	36069999.6948242
1999	26219999.3133545
2000	42520000.4577637
2001	41470001.220703095
2002	38169998.1689453
2003	42619998.9318848
2004	64139999.38964839
2005	65830001.8310547
2006	66120002.746582
2007	64870002.746582
2008	79580001.8310547
2009	77330001.8310547
2010	56689998.626709
2011	59439998.626709
2012	46069999.6948242
2013	60259998.3215332
2014	44360000.6103516
2015	37470001.220703095
2016	34000000
2017	37680000.3051758
2018	48930000.3051758
2019	40810001.373291
2020	30290000.915527303
2021	50490001.6784668
2022	46009998.3215332