Year	current US$
1970	396630000.41991466
1971	442790005.9893729
1972	503620002.49139965
1973	545170001.5738608
1974	767950001.6625971
1975	929299998.028204
1976	840530007.1984527
1977	814730007.3411312
1978	1349499993.8476827
1979	1913029987.1843312
1980	1908450012.6168125
1981	1962680002.4304552
1982	1890429984.8657095
1983	1736740012.1744723
1984	1439590002.0636623
1985	1618889998.566359
1986	2105519992.4055486
1987	2531690018.650145
1988	2657580012.597143
1989	2615079992.6817408
1990	4704419974.789024
1991	5023129975.056274
1992	6572099942.367526
1993	5270609982.024883
1994	5062709949.977702
1995	7933530046.0718565
1996	4653150024.015457
1997	3259910029.4038653
1998	3071059992.784635
1999	2839689996.730537
2000	2244850002.3204837
2001	2376049999.127164
2002	2799659961.0690026
2003	3639120000.798255
2004	3338119962.0738635
2005	6356089992.6144705
2006	5539920077.083633
2007	6308170069.457969
2008	6947210050.530735
2009	4679550001.991916
2010	4833509985.409677
2011	5841949976.619332
2012	5471459954.975175
2013	5632780002.8640785
2014	7325740034.429356
2015	7259300036.232922
2016	8819790008.293467
2017	9320920027.719814
2018	10190479991.085825
2019	9186480052.182453
2020	11559320013.82299
2021	10211380054.261538
2022	11578379999.043419