Year	current US$
1960	159660000
1961	133660000
1962	95460000
1963	197060000
1964	138960000
1965	124920000
1966	218830000
1967	253700000
1968	260000000
1969	283700000
1970	318700000
1971	444559464.755072
1972	625728125.556624
1973	1379984263.29342
1974	3097497042.04613
1975	2559337301.93491
1976	4434002809.38319
1977	6819562737.56725
1978	6840025568.79456
1979	6915979524.9322
1980	6998647402.30843
1981	7007264890.77748
1982	6950021390.58313
1983	6753651473.59991
1984	6744749010.47849
1985	6744710984.18278
1986	6744700000
1987	6751949358.05587
1988	6744726913.91584
1989	6744726283.28121
1990	6744700000
1991	6744700000
1992	6744700000
1993	6744700000
1994	6744700000
1995	6744700000
1996	6744700000
1997	6744700000
1998	6744700000
1999	6744700000
2000	6744700000
2001	6744700000
2002	6744700000
2003	6744700000
2004	7824090826.07561
2005	12104090953.5845
2006	19931867507.6273
2007	31297619616.8846
2008	49937782642.7432
2009	44127521722.0345
2010	50357041122.4042
2011	60744375869.203
2012	68733378174.1853
2013	76112204640.7643
2014	62798913762.7842
2015	50930903122.4223
2016	41989379729.4279
2017	45571327310.3268
2018	60752414325.0406
2019	63303605926.2097
2020	48562062658.0155
2021	58588712302.7098
2022	89415490471.5221
2023	102778856113.46