Year	current US$
1972	10680000.3051758
1973	53909999.8474121
1974	53689998.626709
1975	68019996.6430664
1976	76680000.3051758
1977	51830001.8310547
1978	49580001.8310547
1979	86559997.55859381
1980	114620002.746582
1981	101180000.30517599
1982	82709999.0844727
1983	35250000
1984	46119998.9318848
1985	46639999.3896484
1986	70900001.5258789
1987	66129997.253418
1988	57409999.8474121
1989	62310001.373291
1990	77269996.6430664
1991	97360000.6103516
1992	79050003.0517578
1993	75239997.8637695
1994	104870002.746582
1995	61459999.0844727
1996	84040000.9155273
1997	47279998.779296905
1998	65089996.337890595
1999	46599998.4741211
2000	36680000.3051758
2001	30090000.1525879
2002	30040000.915527303
2003	32369998.931884803
2004	25200000.762939498
2005	46069999.6948242
2006	29139999.3896484
2007	43060001.373291
2008	65889999.38964839
2009	67300003.0517578
2010	65050003.0517578
2011	77059997.55859381
2012	81629997.253418
2013	111330001.831055
2014	67860000.6103516
2015	82830001.8310547
2016	61080001.8310547
2017	79169998.1689453
2018	118800003.05175799
2019	131479995.727539
2020	165779998.779297
2021	133880004.882813
2022	192399993.89648402