Year	constant 2015 US$
1960	57400178963.01872
1961	60786148241.13825
1962	65015177560.660515
1963	71419920606.72145
1964	75909760902.41714
1965	80552884842.00426
1966	86422279042.2355
1967	89428469824.48433
1968	94740780930.87143
1969	103448211468.18704
1970	112901469884.73547
1971	120774991642.97021
1972	122226611738.29054
1973	129861055658.85342
1974	140383868968.78387
1975	135431889925.83348
1976	143932273153.11667
1977	149396722886.09204
1978	151422584692.11002
1979	154563757703.11942
1980	154588923674.50458
1981	153110993700.00888
1982	153065237388.3995
1983	155800322024.3628
1984	155832351442.48935
1985	157801017858.9956
1986	157027736192.79718
1987	157337735203.95068
1988	164244653769.92453
1989	171456996825.4038
1990	177654692561.4323
1991	177767939432.66553
1992	179122326256.30304
1993	175305104850.77805
1994	181093280488.38977
1995	188768906198.914
1996	190951483372.19406
1997	199105262539.03622
1998	209612061139.9034
1999	217502741514.9917
2000	228690165251.04834
2001	231278829689.8616
2002	230901340119.08426
2003	235973429480.00928
2004	241736440255.74875
2005	245769861343.14093
2006	252275268274.74252
2007	257346213727.8773
2008	248989962882.1636
2009	234452032118.9976
2010	239987404134.9675
2011	249686603835.9292
2012	249073468150.85068
2013	248787491203.29208
2014	252809473212.78192
2015	254496738312.8905
2016	256677027670.59012
2017	262424023737.2663
2018	266781170729.29483
2019	272287945050.50885
2020	245546799324.0452
2021	254581387489.36786
2022	256762820754.8577
2023	259916576751.55963