Year	current US$
1970	1295009998.6158316
1971	1481600000.2901993
1972	1669069992.8309774
1973	1819980005.625636
1974	2247219990.782439
1975	1650520003.8608165
1976	1367300004.3444335
1977	1306680001.7245126
1978	1761259995.3226752
1979	2191119999.2094193
1980	2416620011.817664
1981	2477589981.3547745
1982	2658020023.249091
1983	2718450029.5389433
1984	2747390022.4175315
1985	2810150020.470845
1986	3594030040.111391
1987	4385240021.990613
1988	5221869957.83262
1989	5541050008.568913
1990	6220480074.502529
1991	5742360044.989739
1992	7883439997.967338
1993	7336180092.522874
1994	7446839973.168446
1995	7707269993.18786
1996	5914670030.783862
1997	4945490000.715481
1998	6574409960.264339
1999	8172269941.523675
2000	7005490002.883596
2001	5737150020.752104
2002	5726449985.032901
2003	5310050060.415641
2004	5228330016.113819
2005	7607339985.648165
2006	5791369991.756976
2007	6264229978.622869
2008	5980949952.479453
2009	6796660039.601849
2010	7161179993.312804
2011	6183339965.12555
2012	6354579999.636863
2013	8944510136.829697
2014	6741970014.410091
2015	6007940025.547515
2016	5791060101.896527
2017	5912900041.501972
2018	5936209936.209022
2019	5003249978.061764
2020	8672989967.675882
2021	7723099922.185763
2022	7257140054.9206915