Year	current US$
1960	252169712.04212478
1961	257703244.55999702
1962	289200704.3825417
1963	345175036.09055525
1964	440797869.28226596
1965	531569563.88859105
1966	638349755.2219319
1967	630567115.7907317
1968	481532847.5905867
1969	420945147.6309565
1970	526704545.45454544
1971	670251136.3636364
1972	839652164.0607296
1973	1154440252.9679353
1974	1515190595.2976487
1975	1406875081.327261
1976	1669488389.965417
1977	2208509076.2809877
1978	2511826196.009
1979	2853435053.8854227
1980	3381419251.2923126
1981	3492997010.049556
1982	3206626644.537101
1983	2765950335.7109504
1984	2864441387.405068
1985	2984052356.550712
1986	3989622739.2821174
1987	5520318404.641495
1988	6106635816.2458725
1989	5672569449.070682
1990	6468736355.556776
1991	6909730288.170614
1992	7080981738.056056
1993	6218581531.643473
1994	6389460342.786556
1995	7123633418.197389
1996	7426082270.676692
1997	7569672925.337391
1998	8503693098.622713
1999	8982047589.489502
2000	9025660361.75842
2001	8234846804.605819
2002	9318395054.859337
2003	11429333037.84432
2004	13825302535.7699
2005	16852963067.049637
2006	17465318552.294098
2007	21652505596.75279
2008	18074622987.01845
2009	13154414219.206978
2010	13751161917.739773
2011	15221622925.931889
2012	14751508133.544277
2013	16125060515.31174
2014	17867662177.89113
2015	17517210519.091156
2016	20793168030.952427
2017	24728285177.460316
2018	26260850582.06868
2019	24681343649.29519
2020	21629953194.065945
2021	25797870984.2963
2022	28701830401.683697
2023	31020032583.197216