Year	current US$
1980	2421990337.992435
1981	2249908577.803252
1982	2118710248.2372706
1983	2297400687.550489
1984	1951260037.8098488
1985	1608237350.3987794
1986	1809048527.1541054
1987	2300068217.018093
1988	2495094746.4402404
1989	2535135797.583919
1990	2789921853.3765235
1991	2996869281.4836407
1992	3429521699.4025974
1993	3251188833.145334
1994	3666503529.6291146
1995	3978514206.31168
1996	3989163196.5676665
1997	4154989950.003928
1998	3873109865.5568347
1999	3868551730.3916335
2000	3922232164.831751
2001	3557341215.1515923
2002	3349169826.3889647
2003	4926439383.514245
2004	6609205994.7740555
2005	7248374837.720556
2006	8001779551.063232
2007	8839536475.999632
2008	8607431497.49471
2009	8938847189.075916
2010	11431412421.13161
2011	12523359440.549862
2012	13042053591.685684
2013	12043307277.123508
2014	12435430969.630136
2015	11335161083.506102
2016	10722018732.093588
2017	12895153160.46599
2018	13682018827.04337
2019	12541928102.765705
2020	10583748541.525812
2021	12402486183.639603
2022	12567271004.676123
2023	12351024843.746696