Year	current US$
1960	7677596928.961228
1961	7923996830.401268
1962	8352396659.041337
1963	9490596203.761518
1964	10749195700.32172
1965	11873395250.641901
1966	12615394953.84202
1967	14174994330.00227
1968	15299193880.322449
1969	17445393021.842793
1970	20024191990.323204
1971	23000012583.593513
1972	22962697973.91785
1973	30142991156.538067
1974	38060155089.87059
1975	42626989836.48588
1976	40460460115.11503
1977	44185311046.32776
1978	48747362186.840546
1979	59351110361.59345
1980	85827018337.66887
1981	94871230966.10106
1982	84084227898.6495
1983	95372049187.68512
1984	83842559736.23936
1985	61366058308.1876
1986	70226587636.40945
1987	91598220657.52371
1988	102214326306.7701
1989	106981149413.36658
1990	126120415673.20018
1991	135423521039.79443
1992	145040311863.82675
1993	141451068872.63437
1994	152169334780.51974
1995	169893710707.08298
1996	160840030083.62427
1997	167435466611.92084
1998	151611053158.62933
1999	149263337918.55417
2000	147581596935.83185
2001	130701993592.65417
2002	121985357792.9534
2003	186038045294.0342
2004	249756550767.96997
2005	278970174458.685
2006	297526401861.6715
2007	328682035749.7447
2008	320547545647.9023
2009	325024137263.2461
2010	408846252210.35504
2011	458113156309.5121
2012	441814058539.08093
2013	409370647758.5957
2014	386910511747.99896
2015	351214944340.3107
2016	322126407334.3849
2017	377084208519.5562
2018	403199856935.87823
2019	387359000651.07434
2020	323515324994.88885
2021	395816634160.37616
2022	397294318565.9592
2023	378010262156.9666