Year	current US$
1981	46454842312.47481
1982	40769555006.24639
1983	29479173977.314255
1984	19867552984.467323
1985	23699893474.33184
1986	19593719383.177204
1987	17695649750.22422
1988	18459215258.941467
1989	15319442794.360456
1990	18334353738.17899
1991	20320645626.564644
1992	17812805128.17394
1993	20092391483.088676
1994	24780342204.703762
1995	39100173781.86938
1996	47636731426.573
1997	51295501681.33954
1998	51078019120.38491
1999	18878502774.188164
2000	17797384971.607483
2001	18688350737.707516
2002	20593192315.356236
2003	23960281107.513844
2004	27630782699.366608
2005	32683010646.43303
2006	38405486097.70928
2007	44451482001.11933
2008	53554311187.60644
2009	47081629502.7801
2010	48588710176.467155
2011	59455394494.91777
2012	64073866355.444305
2013	83184103828.70868
2014	93092706243.16702
2015	78194377800.63249
2016	68227085477.517
2017	68250500128.11817
2018	80139245687.97939
2019	93794121525.16373
2020	93519199478.8334
2021	111134864753.10262
2022	111624949254.85835
2023	105188321504.15022