Year	current US$
1960	134793934.56560132
1961	159031434.30968645
1962	171340070.07628316
1963	181392411.6435805
1964	196883741.68312687
1965	206071196.97013804
1966	225497974.818197
1967	246340524.11621293
1968	266596980.9087559
1969	295429413.8464243
1970	307160008.82435715
1971	357718213.95857084
1972	401940061.9123395
1973	665353060.2245511
1974	1417920154.3361843
1975	2004545689.9701324
1976	2830711871.221325
1977	2657932399.59639
1978	2162585097.5020103
1979	2668745828.233633
1980	3856028568.405495
1981	3534371856.4666862
1982	3304867117.0600033
1983	3096313731.8278346
1984	3337401883.233886
1985	3096404810.9169416
1986	3157035405.32188
1987	3038898144.1133275
1988	3556845177.2410965
1989	3951934805.3073688
1990	5336349260.118058
1991	4849228985.029927
1992	4864374321.892955
1993	3745523609.112881
1994	3692804836.6147103
1995	4293428248.935318
1996	4930999652.176415
1997	4610325090.520597
1998	3968303617.698243
1999	4094076970.715078
2000	4299812306.951883
2001	4393551523.652874
2002	4854435332.829541
2003	5797168342.664794
2004	6576889565.21156
2005	8624811513.895323
2006	8966977835.361732
2007	10624577435.22365
2008	13406691592.658396
2009	10736261136.27364
2010	12484464818.834135
2011	15711223534.050156
2012	15456970450.536255
2013	15890971279.419317
2014	17256249272.89687
2015	13188718895.917381
2016	12934874984.942558
2017	13985728543.240047
2018	15754973532.167831
2019	15511133835.782314
2020	14503352837.763298
2021	17052331402.470327
2022	19032454431.82307
2023	18421276702.47768