Year	current US$
1960	27299989.080004368
1961	34579986.16800553
1962	35419985.832005665
1963	38079984.768006094
1964	42419983.032006785
1965	48439980.624007754
1966	65379973.848010466
1967	73499970.60001177
1968	61319975.472009815
1969	77979968.80801249
1970	76859969.2560123
1971	92699138.86275075
1972	97434062.89635435
1973	116577492.33023854
1974	113322452.41560788
1975	188774157.95366648
1976	188025047.00626174
1977	231150057.78751445
1978	257025064.25626606
1979	385008315.51437396
1980	514884301.4044071
1981	603079608.7873571
1982	549222888.5925424
1983	550937976.8422942
1984	491161998.72973007
1985	395916856.4281468
1986	408922063.2358759
1987	498911363.4209268
1988	552591899.2481971
1989	549514865.9175339
1990	1056119399.1777594
1991	1106744648.8357902
1992	1272241791.239454
1993	1371232275.9875166
1994	1303365834.9475245
1995	1660059000.5472715
1996	1670778901.643016
1997	1675230090.8731453
1998	1553230622.739353
1999	1541537714.150655
2000	1504024998.8904624
2001	1322512457.7481966
2002	1201988312.593026
2003	1834074957.4110126
2004	2360445708.7126136
2005	2717737581.7067466
2006	2794551601.118149
2007	2953330409.4252033
2008	3039060221.4708405
2009	3359213630.3567967
2010	4263623067.296689
2011	4719727819.298699
2012	4463400604.80131
2013	4109631875.775759
2014	3933921981.8632417
2015	3611876960.372814
2016	3340467086.4511642
2017	3994816428.346362
2018	4140201833.8230076
2019	3840378419.5852847
2020	3536911211.3375773
2021	4076965874.3045845
2022	3799750071.5517507