Year	current US$
1978	237700000
1979	305900000
1980	433600000
1981	474900000
1982	529500000
1983	454900000
1984	318700000
1985	320800000
1986	367440000
1987	335060000
1988	290630000
1989	392720000
1990	363100000
1991	388390000
1992	516420000
1993	711250000
1994	820700000
1995	813900000
1996	794600000
1997	839700000
1998	831400000
1999	759500000
2000	842199151.3
2001	773079689.230305
2002	592544768.973444
2003	601751713.212561
2004	747638619.312703
2005	900768216.7402
2006	937347058.448611
2007	1078714285.98279
2008	1461940609.1693864
2009	1233486810.4112363
2010	1469529985.3418763
2011	1988858539.5409164
2012	3820690625.664878
2013	4930788763.924206
2014	4943611221.58599
2015	4233409147.7451296
2016	3821919202.7650785
2017	4141480360.9566226
2018	4521946236.864737
2019	4698889317.540288
2020	3481299961.412921
2021	3879682055.0758452
2022	5407004294.728154
2023	5826726922.565864