Year	current US$
1970	901529998.3508885
1971	1067410000.0411271
1972	1346360003.5756826
1973	1849820002.269
1974	2464639996.856451
1975	3066950001.3515353
1976	2428070002.306253
1977	2823739998.061211
1978	4052360012.6001973
1979	5376680002.156645
1980	6101800007.285549
1981	5858999988.326803
1982	6075039980.674163
1983	5734739989.539607
1984	6061179994.298144
1985	6822829990.800471
1986	8502469981.785864
1987	9550140013.843777
1988	11577349964.873867
1989	11121879991.894587
1990	12939320003.999397
1991	12954430046.89738
1992	13255419983.621687
1993	12384119971.755892
1994	13912419992.657383
1995	13351779989.248142
1996	11857030015.699566
1997	10479610018.612816
1998	10965480015.717447
1999	10427489970.583467
2000	10503229999.108236
2001	11445819993.96533
2002	14115419929.357244
2003	20676509938.400246
2004	20753849950.533363
2005	21727590106.029068
2006	23111439970.14686
2007	26048220052.303757
2008	30886840047.04097
2009	33550869988.26824
2010	36201060059.89948
2011	38556740008.313225
2012	36714840123.903
2013	39005950002.38159
2014	35386310111.93247
2015	32766459881.8645
2016	33675320043.742653
2017	37039730087.716125
2018	38234550128.65552
2019	37632549926.07422
2020	41612270123.46685
2021	43874250074.390335
2022	40020750035.54301