Year	current US$
1960	36156337.39762199
1961	44872036.30046603
1962	45540807.40521074
1963	44292571.31496502
1964	43043323.30734373
1965	43657713.71784619
1966	49769121.57740567
1967	53431504.39532064
1968	54328829.295828424
1969	54677906.65826119
1970	56402035.69759051
1971	57171347.90124062
1972	69134485.40306258
1973	81601131.35683215
1974	83815986.48514785
1975	113393084.59733407
1976	138159997.27541888
1977	184766964.06732234
1978	205903758.493132
1979	240696714.43494487
1980	260318609.62600005
1981	237366706.31205878
1982	228236679.3549726
1983	202589558.5194583
1984	149213881.08540723
1985	156033338.5416416
1986	215127721.29925916
1987	250551877.94422165
1988	353535771.85566455
1989	342310843.7689892
1990	735315964.4720565
1991	645379469.5967549
1992	672616556.7931589
1993	655172108.7411059
1994	379253448.1732842
1995	443470741.70679647
1996	476608295.06762385
1997	470489362.59756327
1998	527201451.6779783
1999	557721612.2480716
2000	464312216.9550061
2001	468903696.1507742
2002	518730523.06670237
2003	625760636.6750798
2004	732166789.3659526
2005	779334712.6103337
2006	804106819.9899268
2007	986537243.9139359
2008	1251004628.9435205
2009	1348883890.3026717
2010	1215418324.3135507
2011	1437575288.5484276
2012	1423576758.5359013
2013	1564029710.0124943
2014	1948714811.585683
2015	1597602014.9723086
2016	1587905980.2698631
2017	1729432467.1158993
2018	1948047611.8185995
2019	2017873443.0103636
2020	2166453521.3985963
2021	2586042481.419085