Year	current US$
1981	66103194.66789244
1982	65118166.14261081
1983	62433333.33333333
1984	66290478.27994735
1985	62703401.0754941
1986	71941176.47058824
1987	85037809.83055595
1988	113979321.54148509
1989	110653953.11879222
1990	116504861.86139835
1991	134516427.57982415
1992	138576200.7274887
1993	139559971.09826592
1994	204821466.4444781
1995	212551734.9909513
1996	227113158.53559542
1997	220047249.70320538
1998	199383579.08847186
1999	205665213.70756036
2000	207445630.5224363
2001	181792226.33184087
2002	186164144.94403824
2003	203117735.1532951
2004	232974581.35418484
2005	261166977.5132787
2006	297407798.25875723
2007	303189398.5317572
2008	350231171.1761005
2009	322166871.71392983
2010	378768090.8851022
2011	426548682.71019953
2012	484563982.5078528
2013	461951651.1100357
2014	443073544.46409404
2015	441518253.689696
2016	422787258.94058996
2017	478636684.6216936
2018	518922418.9801731
2019	553365042.2242352
2020	525210300.47005665
2021	499456301.0472296
2022	539142714.1442878