Year	current US$
1960	3132744902.02968
1961	3364067224.819034
1962	2047699118.0712109
1963	2207278674.660005
1964	2462376356.538492
1965	2690727210.3332343
1966	2981080958.205128
1967	3141393000
1968	3441144794.871795
1969	3789244297.179487
1970	2888689888.8107924
1971	3096496357.266219
1972	3317754275.382099
1973	3984249906.198423
1974	5314510265.436532
1975	5773009696.877717
1976	6598119731.466301
1977	7545573997.224032
1978	8834476824.516907
1979	10743474904.270388
1980	12993919592.706211
1981	14206670119.562258
1982	15563978395.784544
1983	14114285271.549704
1984	13038114090.623058
1985	13833740476.205576
1986	13821124350.359024
1987	15400494096.683266
1988	17685050911.189674
1989	20132072690.20761
1990	21552662231.957382
1991	22785197102.053802
1992	26848594986.330616
1993	27788169086.67831
1994	32611690133.162273
1995	38437204827.15041
1996	43843193564.26013
1997	45067731612.91479
1998	37521950490.364494
1999	43894815145.22903
2000	42741556766.175064
2001	40880864380.321846
2002	43644354395.113815
2003	45528833771.16311
2004	49778102870.85186
2005	56576787975.31662
2006	67880931471.05485
2007	83282044734.77744
2008	95750027148.25668
2009	94915933464.16193
2010	112334960238.23187
2011	127801722179.57799
2012	145378209517.93677
2013	161118058397.94553
2014	168616278887.10556
2015	179336873335.81818
2016	189611607172.0347
2017	196071778735.77585
2018	207363310719.05945
2019	229305211198.37112
2020	222168638961.20142
2021	240554971180.5586
2022	247573405336.25943
2023	272877971923.35416