Year	current US$
1961	10208248.264597794
1962	11878688.889713798
1963	14291547.570436912
1964	16333197.22335647
1965	17975567.190226875
1966	18653789.159882147
1967	20008699.434536755
1968	20048972.079341345
1969	23467244.321911514
1970	28128238.448505584
1971	33048700.699558794
1972	41833461.344906785
1973	58874963.56747305
1974	134748845.44287553
1975	148120620.84221265
1976	607364214.6468766
1977	365079365.0793651
1978	441320871.01837087
1979	650852835.0977589
1980	752599986.776748
1981	707240023.09399
1982	231139898.6180536
1983	595856915.6084093
1984	742261447.9406499
1985	188556942.52799794
1986	792353728.8489418
1987	1249767576.058731
1988	1810402254.6758904
1989	443979083.3671692
1990	735325267.1780224
1991	527333925.5223829
1992	1057672270.9387652
1993	297198026.31553435
1994	2751274937.6748176
1995	5901885420.742665
1996	1262177321.820566
1997	1590398862.9416656
1998	-2020700723.9069
1999	-1367966484.0476956
2000	1848118516.776755
2001	-520596249.3989421
2002	725741792.0975437
2003	1170064532.6997786
2004	908577298.4078069
2005	-612163578.4400643
2006	-274079012.7697132
2007	1645983031.031414
2008	1089017833.052282
2009	2959460766.923598
2010	4829603997.442712
2011	1508093525.179856
2012	-472125209.3589089
2013	-215703971.11913356
2014	963750323.5392245
2015	-2654884380.946238
2016	57586395.6971239
2017	1408022378.4838064
2018	1429355106.2065446
2019	-391402818.58524024
2020	6731939359.562729
2021	-245585823.17563438
2022	-3012609340.046635
2023	-3754478367.4941564