Year	current US$
1975	77327360.03168161
1976	117732807.66543567
1977	118871835.75842136
1978	126525132.99855815
1979	157758663.5509372
1980	210958086.8095262
1981	261025207.5771889
1982	223984487.64480686
1983	209466514.1947994
1984	185949385.96927363
1985	184855566.0518073
1986	210659772.28658083
1987	232038979.76433155
1988	270123800.52702236
1989	326306369.0150649
1990	300402724.6059763
1991	270322676.87565255
1992	137600000
1993	197782528.71277285
1994	238303584.74618408
1995	268184756.1278775
1996	286282503.8532293
1997	385124049.12245816
1998	532889176.15472585
1999	575995624.7203301
2000	554000000
2001	477300000
2002	540600000
2003	586200000
2004	662600000
2005	722600000
2006	897104750
2007	886899200
2008	875483700
2009	757038750
2010	719367550
2011	794384250
2012	745924400
2013	772805500
2014	776494850
2015	797933650
2016	791860200
2017	778175600
2018	727009650
2019	771731250
2020	849253600
2021	850289000
2022	973007800