Year	current US$
1990	35971268010.7465
1991	24433182103.9547
1992	17379724145.9571
1993	22211788579.6631
1994	37155840068.4323
1995	49094125174.8247
1996	51283145595.3296
1997	58175021297.4895
1998	44292860321.7017
1999	57938274200.8573
2000	76108955826.3792
2001	64496692825.3511
2002	62732724788.1817
2003	71881707776.0346
2004	104853855960.393
2005	120937245411.033
2006	152435016866.254
2007	164520196771.136
2008	154955146236.02
2009	60423912911.7927
2010	106178658989.129
2011	148406990816.417
2012	145953077577.822
2013	150932893661.115
2014	159530900540.958
2015	83213425278.2891
2016	70865390856.941
2017	100922976139.517
2018	99616797084.8364
2019	103838141682.032
2020	62821130759.864
2021	150337788113.907