Year	current US$
1970	24189999.982714653
1971	30260000.12829899
1972	34430000.163614765
1973	47100000.239908695
1974	66030000.07383524
1975	146180000.72054562
1976	128530000.01236789
1977	154299999.02471897
1978	185819998.8305568
1979	232890000.01922244
1980	276390000.36194927
1981	268320000.2033264
1982	262830001.14746383
1983	306070004.04968876
1984	356979997.14687467
1985	379880003.4560264
1986	316399998.54005855
1987	348100001.1656432
1988	419859999.4499236
1989	458599997.52789724
1990	537259998.8076835
1991	815219996.0742145
1992	963309991.9557567
1993	836549997.2999098
1994	747870002.4802237
1995	709970009.4014405
1996	238330000.19937754
1997	158649997.33865267
1998	160259999.3795157
1999	214880003.21388263
2000	200989999.57367778
2001	232789999.33600423
2002	226140000.2837181
2003	210049999.564886
2004	178909999.4748831
2005	235550001.69575226
2006	224789999.91714957
2007	169880000.1144409
2008	220989999.97228393
2009	215389999.4343519
2010	184399998.0315566
2011	195010000.67964196
2012	248004408.1059677
2013	244420875.5660803
2014	194561925.01494655
2015	196290173.20368433
2016	199748618.5990273
2017	186050129.16494167
2018	141118492.92181432
2019	164839963.16976842
2020	179147913.46713912
2021	245355580.11382812
2022	246356469.01279676