Year	current US$
1981	31200000
1982	39600000
1983	42700000
1984	40600000
1985	39700000
1986	191800000
1987	203700000
1988	220300000
1989	218720000
1990	134040000
1991	56550000
1992	54840000
1993	58050000
1994	88260000
1995	87400000
1996	108400000
1997	100500000
1998	143200000
1999	136051200
2000	157399189.78313908
2001	197315171.268004
2002	260792722.184579
2003	328568359.436718
2004	427248347.4612058
2005	392882099.338586
2006	409638329.67344373
2007	456100896.62890434
2008	616420772.5473284
2009	558483607.9014773
2010	768364876.5300596
2011	1354832108.0010304
2012	2060466672.0352383
2013	1978463732.4129703
2014	1871953344.8149424
2015	1383417738.0889885
2016	2118450040.701445
2017	2154282551.890326
2018	2584221256.386699
2019	3200042801.545776
2020	2082751271.402654
2021	2465255427.354115
2022	3464794772.877076
2023	4152497489.9669776