Year	current US$
1989	89427972502.96948
1990	81609510164.05157
1991	71448603563.63766
1992	72948128132.57367
1993	62435581091.78229
1994	49441118702.510376
1995	46866250054.82889
1996	50370758566.30182
1997	50291418398.61444
1998	77211988446.26959
1999	63186323737.894775
2000	73289810362.97357
2001	63771392228.9462
2002	77967381548.77155
2003	96307342878.37482
2004	135555059299.47284
2005	180082513136.86426
2006	224319489790.26965
2007	278666758556.74255
2008	342730026417.23914
2009	258223394373.115
2010	318938572932.24854
2011	394765672785.0713
2012	406328594878.3159
2013	435194617377.4331
2014	439166851805.03
2015	374518476048.1294
2016	350023365356.8202
2017	376900771796.04346
2018	394772874578.5647
2019	380043615596.2727
2020	354391475615.39465
2021	461755492644.7976
2022	490467444164.2744
2023	500229572165.0957