Year	current US$
1980	3540992040.3289995
1981	4161702127.6595745
1982	3892819148.93617
1983	3471808776.5957446
1984	3665159574.4680853
1985	3280851063.8297873
1986	2588829787.2340426
1987	2964627659.574468
1988	2869148936.1702127
1989	3385638031.9148936
1990	4001596010.638298
1991	4414893617.021276
1992	4596276329.787234
1993	4198138297.87234
1994	4119148936.1702127
1995	4122340425.5319147
1996	4649734042.553191
1997	4413031914.893617
1998	3950532180.8510637
1999	4168882978.7234044
2000	5132180851.063829
2001	4794680851.063829
2002	5624202127.659574
2003	6205053191.489362
2004	8170478723.404255
2005	10286968085.106382
2006	11559042553.19149
2007	12626329787.234043
2008	16276329787.234043
2009	11353989361.70213
2010	13097074468.085106
2011	21506648936.17021
2012	25749202127.659573
2013	28331382978.723404
2014	26548936170.212765
2015	22301861702.12766
2016	21088031914.893616
2017	23876329787.234043
2018	27048670212.765957
2019	25207712765.957447
2020	23296808510.638298
2021	27577393617.02128