Year	current US$
1984	28200000
1985	26450000
1986	29900000
1987	33350000
1988	41350000
1989	50100000
1990	53750000
1991	58500000
1992	71000000
1993	82400000
1994	85895000
1995	88449500
1996	87695000
1997	87400000
1998	93800000
1999	99065790.044625
2000	115664747.26425001
2001	110653568.5370636
2002	121418458.65890816
2003	127327310.3278166
2004	138926373.61337063
2005	147192098.0504447
2006	143303702.17882508
2007	158999710.2581047
2008	160873121.92168802
2009	153543460.04369158
2010	153585051.94961113
2011	162348210.70136654
2012	177365994.5446557
2013	195389657.1527722
2014	212617961.7068243
2015	206876657.16335988
2016	201778712.28904182
2017	216415998.01693028
2018	219301282.21637368
2019	219009343.9880564
2020	155057277.8395198
2021	274561974.92729366
2022	327355173.3205229
2023	280533918.3358668