Year	constant 2015 US$
1960	15780891998.842005
1961	15032795821.252176
1962	13883090116.745716
1963	13134993939.15592
1964	18426790058.528095
1965	21214432657.125904
1966	24128070401.423088
1967	29978969979.836063
1968	36026736973.40422
1969	40223950264.513565
1970	43326580727.35948
1971	51776130185.82149
1972	60209930251.07079
1973	76463436532.50983
1974	137376175601.92326
1975	207648553849.2435
1976	203045958057.5744
1977	230146158084.54614
1978	160407834341.05594
1979	120926559656.44244
1980	123352130426.57915
1981	116900027480.20255
1982	104302824074.19574
1983	144716009131.16193
1984	99451846962.60933
1985	92548977201.76369
1986	80580150407.86691
1987	88639121495.58936
1988	75435362391.6566
1989	90084713206.89453
1990	119105969755.31235
1991	158845477745.3041
1992	143975288932.45892
1993	115443960165.07443
1994	69755901640.49106
1995	68891526999.32442
1996	81063648404.23344
1997	75888051011.0157
1998	79466768542.96478
1999	74589632142.04396
2000	86474415936.44698
2001	102262243701.47302
2002	120538886909.23442
2003	143163666791.9062
2004	157329785820.1143
2005	154985135038.13367
2006	161392698391.61517
2007	170796556689.42795
2008	180659724840.59665
2009	177672982460.454
2010	181837136094.61105
2011	164922710199.95618
2012	130181612587.81865
2013	106363083783.04787
2014	107895330632.89372
2015	84507234684.62825
2016	89508769979.5698
2017	95598392114.64981
2018	69589150533.5395
2019	47591403908.23031
2020	33451792726.95636
2021	41511927550.55917
2022	44619503007.96681
2023	45351262857.296684