Year	current US$
1960	12936018.972827826
1961	-8983346.508908212
1962	10355348.52117783
1963	13393352.976917699
1964	-1600669.0143145544
1965	7415344.209171507
1966	24206035.502185404
1967	30445377.98655438
1968	25610704.22903287
1969	36488720.18345627
1970	116293503.89713904
1971	88429374.10165948
1972	98370865.70295343
1973	156053333.33333334
1974	365101326.60535526
1975	220649185.44051868
1976	292624298.90777206
1977	138173870.81107333
1978	242805607.9363778
1979	606992084.4327177
1980	655063000.0919709
1981	374696431.90734166
1982	72466512.04619682
1983	61495327.10280374
1984	139659252.24798864
1985	59256481.1776288
1986	265715194.76387438
1987	869523284.6514192
1988	789743589.7435898
1989	725054661.1011727
1990	1420807055.324822
1991	379739507.95947903
1992	165380882.48564887
1993	1550200490.038625
1994	-327147836.51642877
1995	610424199.6648735
1996	-2731126258.0307946
1997	-263738158.38567463
1998	-5595117596.656792
1999	-1623994001.0277545
2000	2735963590.8659296
2001	-2943088859.159591
2002	-1552618469.4636621
2003	-7364266555.235586
2004	-1597772608.1925042
2005	-2148525862.5195794
2006	-1051460319.5981203
2007	-2369846234.6941347
2008	4222322899.563986
2009	-2848853397.8680177
2010	5008404791.171009
2011	3986639910.445103
2012	8359846872.309302
2013	7478062814.67274
2014	4098891125.05426
2015	-5756732675.067736
2016	1393873240.5580416
2017	7004942339.373971
2018	8828091058.848997
2019	6651209024.174619
2020	6763510859.276589
2021	7472517329.9550495
2022	7983508708.049151
2023	-5875256094.318671