Year	current US$
1960	-58333333.33333333
1961	-9090909.090909092
1962	-54545454.54545455
1963	0
1964	11764705.88235294
1965	131034482.7586207
1966	101851851.85185185
1967	22857142.857142854
1968	47413793.10344828
1969	25403225.80645161
1970	-28225806.4516129
1971	-32258064.51612903
1972	11864406.779661017
1973	36172695.44924154
1974	-102641165.75591986
1975	-123747763.86404292
1976	-19049061.175045427
1977	-113643210.67355283
1978	-113315623.44346672
1979	-311240112.2735392
1980	-568940813.4024028
1981	-422857407.57898635
1982	-272150436.72850645
1983	106382359.78589715
1984	252464530.4420947
1985	267665783.5422516
1986	349657276.4372598
1987	179969138.2658898
1988	354986095.11111355
1989	488967735.4961058
1990	505462238.0468651
1991	317407317.27746403
1992	105872034.36114377
1993	-64949511.45520075
1994	-107505932.39341566
1995	-20079067.569696013
1996	-38666891.29087375
1997	-668923904.9239696
1998	-710854144.4703964
1999	-765361935.9219705
2000	-757171200.4834543
2001	-564307130.8706125
2002	165220880.28833088
2003	374094246.0872775
2004	376087086.030421
2005	335162762.57629114
2006	-271753629.0533294
2007	-244991729.16393724
2008	-1494377959.911533
2009	262978889.16346666
2010	414029878.94627297
2011	-202746573.92112583
2012	-1747306848.7721298
2013	-1847227644.4310427
2014	-1231338665.427745
2015	-214881316.59372818
2016	3099840189.5062094
2017	3565169867.905316
2018	3301104708.3447785
2019	3753351597.2900863
2020	2374254466.383473
2021	4338583862.21802
2022	3557849038.4001274
2023	2519682521.444515