Year	current US$
1970	276851836798.24725
1971	316626182181.8661
1972	375818352545.34467
1973	477927461551.2264
1974	530729295219.09235
1975	587131199704.4396
1976	597589510012.0557
1977	679212282211.897
1978	820698472933.7373
1979	1003043070143.2855
1980	1157695122559.2285
1981	988543027479.5095
1982	920824698240.912
1983	876972536979.5964
1984	831207039205.8267
1985	858015274572.3418
1986	1172219567382.9863
1987	1484426004726.5415
1988	1716148732556.7944
1989	1796060017117.1062
1990	2171697660389.9343
1991	2143275217949.208
1992	2235372730843.953
1993	1931401754659.3452
1994	2018176770596.7356
1995	2312190882312.2476
1996	2349626461514.192
1997	2197367069373.6038
1998	2299078462923.4336
1999	2298915689336.5
2000	2202367294431.4404
2001	2186176670287.692
2002	2336270976691.5728
2003	2833971982766.197
2004	3337104834169.3887
2005	3600974767572.968
2006	4021790771100.428
2007	4852002572112.606
2008	5319250880092.432
2009	4313200957335.097
2010	4329320769495.6543
2011	4840299999453.521
2012	4608485464674.396
2013	4760085025238.432
2014	4823231739004.498
2015	4222925393185.196
2016	4273438642991.949
2017	4598376273225.117
2018	4936130698351.676
2019	5040635443298.312
2020	4862901183214.87
2021	5458199785134.189
2022	5570629205237.607
2023	6061401466469.472