Year	current US$
1981	551441066.6666666
1982	670229033.3333334
1983	725268666.6666666
1984	612402625
1985	584447425
1986	874014900
1987	930447966.6666666
1988	911636900
1989	804344500
1990	467975940
1991	1286298568.4210527
1992	381224551.64319247
1993	455909517.0435369
1994	413198588.87381274
1995	588727618.6442567
1996	478057767.55415267
1997	621954882.4668666
1998	537971712.592135
1999	530379659.0166244
2000	613886974.2923111
2001	638035524.3589423
2002	708425456.9962032
2003	835170861.8975352
2004	1210933087.5404968
2005	1483028710.1719072
2006	2029426156.8296928
2007	2524671714.583443
2008	3037494934.8589864
2009	2304668257.1576614
2010	3355977050.1257367
2011	5470718595.110616
2012	5356224605.548108
2013	4893217361.062124
2014	6388231489.265368
2015	5134139179.488475
2016	5688198400.402086
2017	6792836359.896783
2018	7665010102.425126
2019	8412612745.882316
2020	7676311652.048464
2021	8950037976.40907
2022	11155726172.522058
2023	15503198484.011942