Year	current US$
1975	406828316.45341206
1976	390784765.8183899
1977	489709965.7546568
1978	573919426.2183142
1979	650058848.7016822
1980	708809847.8189603
1981	661021741.7625198
1982	769049094.6645225
1983	774258143.3424156
1984	762761023.9496342
1985	914948770.5934443
1986	1054467004.6869357
1987	1293780224.8414187
1988	1624772357.674059
1989	1532799963.557128
1990	1871231982.011579
1991	1709058122.907461
1992	2242829743.935114
1993	2178474413.697739
1994	2346372782.379982
1995	2700510905.095027
1996	3121889356.883338
1997	2917779864.610868
1998	3343878540.591446
1999	3640297236.713751
2000	3810087167.0161963
2001	4601257633.499148
2002	5162884602.297227
2003	6451356123.626432
2004	7608896251.322484
2005	8735538429.450182
2006	10856887800.476465
2007	13389732627.289658
2008	14725019698.200634
2009	14388303264.841642
2010	14329107403.464445
2011	15486240354.540022
2012	14946702566.793419
2013	13935131503.019146
2014	15803890776.625969
2015	14102370266.804169
2016	14642362562.478657
2017	16591999215.840471
2018	17992531233.545517
2019	18727683923.769478
2020	13280256584.611198
2021	14847448574.494602
2022	21561933099.116634