Year	current US$
1970	15880000.084638607
1971	24780000.478029255
1972	24250000.221654758
1973	45729999.72850088
1974	53020000.04984438
1975	69010000.09104611
1976	62859999.11464755
1977	72639999.02643253
1978	74120000.55983666
1979	123500000.74692069
1980	121909999.43576746
1981	104920000.66116446
1982	67489999.54760075
1983	75380000.93959273
1984	59029999.92109836
1985	45600000.20265577
1986	57879999.98591842
1987	75639999.47346745
1988	70839999.95887278
1989	48620000.02153223
1990	89260000.15623866
1991	305329996.52996624
1992	206329999.23639005
1993	138220000.30986962
1994	118090001.17331743
1995	157050001.27106908
1996	185809999.7676908
1997	106689999.93801118
1998	115369999.77752568
1999	99969999.47540459
2000	117720001.55784185
2001	87209999.65071678
2002	127730001.03980303
2003	111869999.64714046
2004	125389999.06554814
2005	406470004.17485833
2006	210110001.84156
2007	136969999.4046241
2008	299230001.7289814
2009	177189999.07746905
2010	142239998.60882768
2011	166840002.15120614
2012	133520001.40026216
2013	137559999.03380862
2014	145049998.41377133
2015	125250000.6463379
2016	224160001.93171212
2017	116810000.05453822
2018	157579998.43172723
2019	130380000.01572077
2020	122109999.37728047
2021	116620000.57287517
2022	136550000.7290393