Year	constant 2015 US$
1960	4206979769.9027495
1961	4623294238.952385
1962	6127004091.986657
1963	8272704007.296033
1964	12001351827.156837
1965	15379597827.288467
1966	18238997837.295948
1967	20265366358.98306
1968	27128012832.310883
1969	30678497533.610264
1970	32197312918.71245
1971	30498091672.060272
1972	33281298886.14699
1973	33925831081.290264
1974	41455139017.216125
1975	43125063344.3888
1976	52992488552.391975
1977	57683765284.35491
1978	59590166894.59318
1979	64928319576.96362
1980	65373260706.91486
1981	52828013781.5867
1982	54310397842.82184
1983	52967721371.31404
1984	50297204631.9009
1985	54485341416.282616
1986	48299889590.48273
1987	41198814142.60336
1988	44321281890.44723
1989	47512155857.84501
1990	49279670598.19732
1991	56994467924.46872
1992	55448621723.07025
1993	53361983283.839325
1994	54394423851.928085
1995	53186646284.03543
1996	54321714834.76013
1997	57153327125.327
1998	55123101084.50069
1999	55536336508.48701
2000	57579668503.44214
2001	56564631725.48585
2002	56022234980.53395
2003	63314109952.65104
2004	66138956972.576775
2005	73990151521.38852
2006	78799900129.0316
2007	83709120342.15475
2008	83573471186.92542
2009	79896086548.96695
2010	83912660700.3206
2011	41672273290.57274
2012	77854953189.63196
2013	63842648630.663994
2014	49131511071.10638
2015	48717501321.30524
2016	47991152062.80314
2017	63584342257.96058
2018	68633808773.51878
2019	64519360225.52511
2020	26892811063.734848
2021	68171296922.06178
2022	69082166408.48132
2023	67926705038.72879