Year	current US$
1975	1417744379.9923925
1976	1282403229.0436192
1977	1195840000
1978	1389537067.5988781
1979	1635833358.3333333
1980	1729999908.3333333
1981	2027749991.6666667
1982	2157489228.207097
1983	2237976180.638614
1984	2326559713.767095
1985	2250878744.762815
1986	2519415210.081467
1987	2599562412.8877506
1988	3090974382.2262526
1989	3162438197.7795053
1990	3373932617.865103
1991	3585800918.5936017
1992	3029503340.757239
1993	3211787500
1994	3661751020.408163
1995	3712098419.678715
1996	3871265473.2061763
1997	4232000701.385236
1998	4187360774.818402
1999	4348388520.971302
2000	4660648617.344723
2001	5306354461.22449
2002	5476667887.527986
2003	5788509911.800792
2004	6419305641.496828
2005	7190753382.213114
2006	8231311322.411292
2007	9311930567.831177
2008	11312084483.42954
2009	11642289113.34118
2010	14170128077.707417
2011	20036559591.086395
2012	19723643247.302715
2013	20349568335.537926
2014	20602864544.835228
2015	22503227656.415955
2016	23630734249.27978
2017	25209702625.305847
2018	28213800824.661533
2019	28954530230.793926
2020	31521468810.02413
2021	34571677694.24966
2022	38471573440.425
2023	37877740302.82091