Year	constant 2015 US$
1960	691334528.6101846
1961	768984419.064117
1962	633723334.7709787
1963	598655599.0494292
1964	621199124.4329498
1965	608674957.9097557
1966	646983496.2693129
1967	764036170.926607
1968	848101684.2166766
1969	941743102.9213158
1970	1044960179.8251153
1971	1049215117.5717133
1972	1053478253.7388419
1973	1057733190.7136341
1974	1061988128.4602323
1975	1115195342.8709083
1976	1067308849.6549156
1977	1001328624.3854054
1978	992818749.6343303
1979	793830243.5359563
1980	1121581848.3151677
1981	1656826750.710556
1982	2410311415.1925488
1983	1894635945.5553095
1984	1834788077.454306
1985	1840526914.2666965
1986	1438808344.7908797
1987	1097757477.840105
1988	1106775649.8254375
1989	1081360786.9251783
1990	1135428826.2001936
1991	1784815736.4302137
1992	1033836962.603377
1993	1935351384.0046854
1994	3377392838.5163093
1995	2892135802.854542
1996	3009796928.1559587
1997	3156414701.5894985
1998	3144030720.2443233
1999	3331839908.4105697
2000	3480420022.727605
2001	3699398242.206812
2002	3873006313.0597897
2003	4030861917.4749727
2004	3943378169.692478
2005	4636672238.687967
2006	4688953191.965934
2007	7249030701.779926
2008	6456762216.300876
2009	6596830608.786575
2010	7135470299.186708
2011	6916110117.057674
2012	6894103507.743277
2013	6610574875.40749
2014	7664482203.87538
2015	9508100092.034107
2016	8649510073.399765
2017	5084481358.433543
2018	5077515298.109968
2019	4509006066.511396
2020	2896179818.0050135
2021	3620224472.689308
2022	3833815855.3380437
2023	4175028334.019391