Year	current US$
1976	45158948247.63908
1977	52412518060.08336
1978	61796682814.24155
1979	80049269661.77832
1980	102373403758.59517
1981	105128649813.52284
1982	103682725369.58354
1983	99342405860.81102
1984	98798194826.86288
1985	99729772611.90341
1986	98142250702.21075
1987	106660955520.62447
1988	117693106847.74504
1989	123977415344.3935
1990	139134415137.83374
1991	135788130871.38629
1992	151723327066.70544
1993	160561318567.71225
1994	176742410170.1059
1995	216669994059.22437
1996	239670642964.97806
1997	257579573876.98172
1998	253352540418.6592
1999	264289633888.1374
2000	279722969836.2186
2001	283336959332.87115
2002	300565912619.31415
2003	346935197349.6328
2004	443366891005.99866
2005	543357080179.903
2006	647077062895.052
2007	826646504603.3551
2008	1017858304879.6395
2009	951506359762.6533
2010	1120676174971.529
2011	1357098623358.9272
2012	1415380274165.4539
2013	1413140207065.491
2014	1449547945756.3928
2015	1364418043175.586
2016	1373814631653.2393
2017	1588390013353.6133
2018	1771150206403.468
2019	1741504551029.1836
2020	1530838040365.684
2021	2021330409985.4841
2022	2391766893539.897
2023	2230194347902.2