Year	current US$
1970	3600000.0070780544
1971	8579999.990761278
1972	14639999.82923269
1973	17230000.11406839
1974	31360000.092536177
1975	39130000.05856157
1976	43379999.838769406
1977	72990001.36926764
1978	88370000.01966956
1979	107470000.95248228
1980	110640002.02901655
1981	109849998.35491192
1982	150699998.43835837
1983	151559997.6181984
1984	127979997.89565797
1985	156249997.7666885
1986	234139999.3095546
1987	221050001.08852977
1988	276010003.6319345
1989	252879995.57890016
1990	355719997.0372025
1991	361499997.51895666
1992	399689996.091649
1993	313130001.72749174
1994	363010000.6349385
1995	369660002.08258635
1996	392040000.2282111
1997	378079999.3574619
1998	362400001.887232
1999	333630001.0271371
2000	310669998.4576553
2001	314669997.64554214
2002	450459998.8069386
2003	577389998.0504067
2004	617200001.6216187
2005	710130004.3668598
2006	805810001.5893576
2007	966129992.3546612
2008	1072830000.1677132
2009	901830000.8773803
2010	997159990.845248
2011	1069299990.0374554
2012	927050001.2226405
2013	1053200002.9310583
2014	965230002.7944152
2015	727929998.4611568
2016	658779996.5180459
2017	732930005.0213933
2018	768829995.4608083
2019	731190001.0183452
2020	761629996.793345
2021	775239998.5808878
2022	772980003.6326051