Year	current US$
1974	13680665.02
1975	31015398.03
1976	30261497.5
1977	40516170.5
1978	34348766.33
1979	39394203.19
1980	51931194.31
1981	45419841.77
1982	35510585.78
1983	39783130.65
1984	35529838.56
1985	40757865.91
1986	49268581.39
1987	58355628.97
1988	56955184.94
1989	56073776.25
1990	80855110.17
1991	70661155.7
1992	70100395.2
1993	61805484.77
1994	50952377.32
1995	49878166.2
1996	48803951.26
1997	47729740.14
1998	46655525.21
1999	45581314.09
2000	44507102.97
2001	44031791.69
2002	50096973.42
2003	77183372.5
2004	79165634.16
2005	83860215.6593625
2006	86153890.3437805
2007	93321883.2601027
2008	100015685.775945
2009	99707964.5869509
2010	111897013.015589
2011	42037257.8695118
2012	71420129.8732234
2013	148953261.85146
2014	160554578.541688
2015	180767735.761453
2016	188062679.743843
2017	198931795.905219
2018	208745502.373646
2019	196545204.663271
2020	201769454.242857
2021	202582629.848734
2022	185158859.491844