Year	current US$
1977	43200441.48148148
1978	48137645.18518518
1979	57544366.29629629
1980	67214814.8148148
1981	79844444.44444443
1982	86622222.22222222
1983	87974074.07407407
1984	98703703.7037037
1985	109707407.4074074
1986	128996296.29629628
1987	145985185.18518516
1988	168570370.37037036
1989	183351851.85185185
1990	212800000
1991	213533333.3333333
1992	231448148.14814812
1993	251855555.55555555
1994	282151851.8518518
1995	302525925.9259259
1996	318355555.5555555
1997	355040225.41059583
1998	357876394.913432
1999	378111444.77811146
2000	391558224.8915583
2001	424024024.02402407
2002	442976235.494754
2003	426068624.1797353
2004	467998370.3703703
2005	512065370.3703703
2006	612075000
2007	658340703.7037036
2008	743552925.9259259
2009	740371851.8518518
2010	749534037.037037
2011	806446925.9259259
2012	801604296.2962962
2013	860296296.2962962
2014	893511111.111111
2015	894222222.2222222
2016	950218518.5185184
2017	1011577777.7777777
2018	1032848148.1481481
2019	1091755555.5555556
2020	860622222.2222222
2021	827422222.2222222
2022	953229629.6296296
2023	1049233111.111111