Year	current US$
1970	5236319954.501465
1971	5728930020.174008
1972	5906750060.189515
1973	7846029979.312793
1974	11222230064.699425
1975	14815249851.344162
1976	14250379903.64433
1977	14688619879.135864
1978	17656379945.85373
1979	21256449885.834015
1980	25740399984.387676
1981	24733869922.96391
1982	23433349954.191605
1983	21784209912.754604
1984	21941539903.430275
1985	23459089933.443825
1986	27254429837.562153
1987	30715880010.183903
1988	32868280012.328186
1989	34140929938.85093
1990	48125360142.24776
1991	52534919882.02373
1992	50224889846.3734
1993	45332819652.03024
1994	49915169928.29743
1995	50972349830.8845
1996	43447539843.20164
1997	37517879980.26609
1998	40065449698.32899
1999	42535310057.40166
2000	39439610182.046906
2001	42055060346.12656
2002	47191790151.11925
2003	55287559713.45308
2004	61236879945.56136
2005	84592839977.02602
2006	79981130112.88646
2007	77249809576.51141
2008	84962259992.12267
2009	84368430362.70146
2010	86000390072.8226
2011	92651060095.10164
2012	91701330312.4905
2013	101805490296.24467
2014	100002850603.3421
2015	95612540104.98528
2016	99352630540.54979
2017	107216739463.687
2018	108915640220.16533
2019	105624849730.7301
2020	133138769937.03847
2021	131219010305.09549