Year	constant 2015 US$
1960	20709696082.08494
1961	23219897092.449833
1962	26280750595.234085
1963	28945822619.091892
1964	32540120723.907288
1965	37872415757.92163
1966	42602434628.352234
1967	49511402619.17635
1968	56555882746.80705
1969	66915032760.446724
1970	75409277653.27522
1971	88386177992.20528
1972	101085601098.62726
1973	112683708575.86
1974	110621746048.44559
1975	99314238313.32397
1976	110114340030.65778
1977	101470737031.74292
1978	73854409700.01447
1979	57548886266.760254
1980	19506465435.54356
1981	17422595061.869118
1982	33683645827.957497
1983	41056844659.19841
1984	32584926652.90917
1985	29512782333.423332
1986	24698968032.491985
1987	36051420344.21628
1988	41106710153.56246
1989	44611747318.96479
1990	53805602278.68128
1991	62770001602.08534
1992	63699421457.663445
1993	69486645293.12596
1994	70451428061.04514
1995	64141612741.1376
1996	64588163441.51162
1997	61043009384.51495
1998	62474923463.092
1999	60906215847.89997
2000	65857693860.88545
2001	61903121807.126366
2002	63927458237.81096
2003	73082468628.35262
2004	73925662947.43741
2005	75434341207.80824
2006	78420709763.50449
2007	78277749791.11815
2008	75908589719.12584
2009	75610059150.48064
2010	81277734671.59583
2011	80843312997.64319
2012	63872968559.783394
2013	62311944081.33555
2014	69429131284.34735
2015	76420864791.01927
2016	97377701953.93123
2017	97869539312.50696
2018	97485392856.07831
2019	77404552275.16205
2020	67474268354.04873
2021	70967531862.10608
2022	76756645721.92482
2023	88576421697.30751