Year	current US$
1972	3839999.9961256958
1973	5569999.90902841
1974	6589999.979361894
1975	20819999.955594562
1976	16289999.917149536
1977	14400000.231340528
1978	15960000.423714519
1979	18960000.358521942
1980	17029999.97884035
1981	15910000.056028359
1982	13030000.092461701
1983	14409999.78035688
1984	15600000.064820046
1985	15940000.010654328
1986	14499999.914318316
1987	24909999.53821301
1988	18459999.96177853
1989	19560000.136494633
1990	26769999.891519547
1991	21980000.015348192
1992	27970000.1552701
1993	31430000.426247723
1994	27849999.94374811
1995	39409999.94799493
1996	42470000.53524972
1997	46789999.85195695
1998	40169999.802485116
1999	46260000.13761224
2000	39019999.69780447
2001	39910000.2720952
2002	40359999.97146428
2003	53939999.803900704
2004	74879999.46065246
2005	84469999.85352153
2006	89859998.97122386
2007	95370000.3884733
2008	115209998.07491903
2009	113059999.08223753
2010	131380000.44226629
2011	143849998.5095113
2012	172660000.73775655
2013	154100001.37984747
2014	188340001.46202752
2015	176189998.9508091
2016	169410002.90773803
2017	175760001.97418034
2018	200779999.57650915
2019	189419997.2189963
2020	205150001.65812677
2021	298539997.1213191
2022	147249998.94574282