Year	current US$
1970	344066714.0625
1971	385863790.06487
1972	433987688.818967
1973	432045337.820807
1974	482917729.109598
1975	478253923.54313
1976	621814224.938578
1977	629396880.379021
1978	739233126.901069
1979	827498445.606503
1980	915290881.766364
1981	1013572471.50586
1982	1057086361.60972
1983	1090272973.76711
1984	1189004610.08188
1985	1261846133.4606
1986	1354796627.10911
1987	1464765046.95092
1988	1586875910.53508
1989	1708807704.90435
1990	1848413554.4931
1991	1956476344.73128
1992	2039181509.85454
1993	2169776549.82951
1994	2307359980.00394
1995	2472147717.53114
1996	2646062529.03758
1997	2828130962.06555
1998	3079920333.50998
1999	3368666505.77363
2000	3656251377.45784
2001	3900469465.52561
2002	4003724328.90923
2003	4230821005.1551
2004	4632576327.39807
2005	4919128743.44837
2006	5203506069.46333
2007	5471136101.49789
2008	5674432699.03414
2009	5774883152.04738
2010	5854162087.00161
2011	6002259365.88882
2012	6237158832.49844
2013	6335010989.20057
2014	5933750160.76556
2015	6003137885.67323
2016	6036188695.10098
2017	5955485035.44142
2018	5830561255.7568
2019	6103454682.24268
2020	6081340309.75501
2021	6346307406.94441