Year	current US$
1971	135436924726.92078
1972	146367171455.48837
1973	169060961119.3996
1974	205257069012.73672
1975	225627384957.15778
1976	235588544300.96738
1977	263149343209.65976
1978	300150138250.85895
1979	333942298086.3463
1980	413648793543.9517
1981	534815034190.30493
1982	529292304224.6502
1983	495619297918.7236
1984	468673782045.2228
1985	490349725630.9208
1986	512846045776.9074
1987	552390648014.2758
1988	580865438388.6777
1989	577294704082.0065
1990	619976022572.962
1991	589595643098.8998
1992	616728878772.8947
1993	607422934076.427
1994	681086960303.9113
1995	777183467626.9814
1996	862422265836.928
1997	906477892992.8434
1998	922862933171.3625
1999	983701759862.3538
2000	1001769585668.7524
2001	1022446524132.4749
2002	1078948179607.5656
2003	1215182379004.3665
2004	1387296033328.745
2005	1587164870294.43
2006	1869384087904.8599
2007	2284437453459.103
2008	2483532574824.83
2009	2682750387859.899
2010	3184653344815.992
2011	3530409503415.148
2012	3754617855009.938
2013	4001425115879.1807
2014	4382877062037.1587
2015	4456917687920.484
2016	4664990382081.196
2017	4990860867176.942
2018	5222828082836.455
2019	5483688736068.769
2020	5317233668931.324
2021	5929668702594.495