Year	current US$
1964	9615902020.049526
1965	10091599997.828133
1966	11661952020.34076
1967	11248348875.406937
1968	11559018946.801376
1969	13615259823.551537
1970	17270432921.766685
1971	12153608090.34784
1972	16942176336.486649
1973	22241589188.604126
1974	35979893473.50171
1975	32134278835.006546
1976	43582429252.93959
1977	43500249197.48613
1978	40902630946.615845
1979	48582743525.390594
1980	66886771336.011536
1981	167249351226.37973
1982	147478069572.18594
1983	100462204107.62103
1984	77670968918.82654
1985	93162031139.41513
1986	35865991994.84366
1987	15947856765.463623
1988	10962281069.158447
1989	1838538709.6616821
1990	-8115751369.855408
1991	-6877419553.17688
1992	-12659484921.160645
1993	-1790612395.3452759
1994	19698672830.685364
1995	72326650084.29077
1996	116636907896.04211
1997	128212579238.7077
1998	140110512138.65472
1999	-20756711726.060608
2000	-1971607406.8087769
2001	11210930923.86267
2002	42629346292.5567
2003	36810270138.79492
2004	55721044442.571045
2005	102940140118.83337
2006	169621969366.1886
2007	203545798568.10925
2008	274183676878.1654
2009	175147440533.2588
2010	251983004548.06274
2011	290003965553.22705
2012	301485359678.27344
2013	334571797646.68115
2014	398282743060.0737
2015	292990211290.5896
2016	216479610129.00244
2017	180160163163.2268
2018	213121238780.91138
2019	267442667110.55786
2020	224330017286.05127
2021	236070759563.7024
2022	260412382432.46167
2023	94999423160.8628