Year	current US$
1970	1501928756.85078
1971	1752280062.53484
1972	2090295462.24118
1973	2351424238.05546
1974	3754972094.07894
1975	4391723167.52856
1976	4360380134.33285
1977	5197602406.85661
1978	6274585309.95818
1979	7006246800.60979
1980	7955496612.76769
1981	10106362876.7184
1982	11490858243.8077
1983	5934840603.61606
1984	5520052175.2206
1985	5993431916.45184
1986	8840429894.20339
1987	10040101726.8166
1988	11182064909.2335
1989	16639443261.6096
1990	17625899447.0133
1991	15521592076.8134
1992	14922180034.9111
1993	16652273513.5099
1994	23411320999.6716
1995	32619206456.6793
1996	35461244903.6896
1997	36711341975.2006
1998	39117324086.5736
1999	22142232985.4623
2000	24699012563.2457
2001	20697116694.2884
2002	18278664337.8236
2003	20566563137.6572
2004	25331293955.5229
2005	38011083187.8122
2006	51728308126.1618
2007	66319341686.0201
2008	85358903005.2787
2009	88027173370.9113
2010	115380448270.68
2011	139938624966.176
2012	133163941630.802
2013	135377264140.842
2014	136502179787.782
2015	108035841225.78
2016	109562539081.556
2017	127192184991.617
2018	113133968716.868
2019	108395081599.484
2020	84300734788.896
2021	93093055234.6571