Year	current US$
1980	151606218.488501
1981	171489432.721449
1982	160431939.054211
1983	173350169.724841
1984	223213127.465537
1985	251207346.689106
1986	302364060.965403
1987	334341604.051566
1988	380250853.327125
1989	432826236.992921
1990	493244345.429868
1991	522180432.122461
1992	581481203.541196
1993	585695242.797914
1994	611366526.25238
1995	652520922.736804
1996	683869202.218584
1997	692059408.912232
1998	748975738.779977
1999	786499924.111435
2000	839722306.747924
2001	786308396.539207
2002	800196844.44083
2003	872657610.583905
2004	931277093.09365
2005	986478250.056693
2006	1085435460.88233
2007	1146578929.65334
2008	1224664336.28567
2009	1203744310.81216
2010	1219395050.44032
2011	1334842485.98174
2012	1310493042.85012
2013	1283388999.18741
2014	1365613966.33514
2015	1324575104.87905
2016	1419675223.53602
2017	1501396916.31893
2018	1618635196.02582
2019	1625946752.97464
2020	1246308827.52173
2021	1366615021.79032