Year	constant 2015 US$
1960	28379740739.055824
1961	30603458381.36697
1962	32736040056.163475
1963	31441909296.006584
1964	31687976412.36745
1965	32444404955.548782
1966	31970497915.932774
1967	34795712954.56505
1968	37976358272.16457
1969	40209189511.525085
1970	41348389123.828766
1971	43198449294.06694
1972	46114800301.20686
1973	47390703867.265015
1974	53948262802.448685
1975	56176982109.52458
1976	59665971453.81504
1977	63638690821.05106
1978	68801445397.0989
1979	77810298803.27219
1980	87721323539.83386
1981	102279857469.086
1982	106251890768.85632
1983	114195957368.39699
1984	118167990668.16733
1985	119160998993.10991
1986	122140023967.93765
1987	126112057267.70798
1988	131077098892.42088
1989	136042140517.13379
1990	149944257066.32996
1991	160962176963.69708
1992	165556503189.48608
1993	175206159597.0373
1994	188920313900.1311
1995	212694741129.79343
1996	233370619550.32303
1997	251621321711.07755
1998	236100520493.23508
1999	247039646272.32718
2000	250950400770.1831
2001	259718949689.87885
2002	269681302035.7345
2003	280179707523.5426
2004	294096703935.07495
2005	305723421914.3459
2006	315424920645.1402
2007	331217432326.03296
2008	348891692071.77924
2009	365844145793.5531
2010	383184214386.7085
2011	402573409260.9724
2012	424779788355.0827
2013	448048822796.2254
2014	471722492132.4181
2015	494560910747.7182
2016	519509210167.43567
2017	545389266586.7218
2018	573405320068.3926
2019	602997043888.4265
2020	586920540445.9124
2021	598692044731.1577
2022	628360527395.5255
2023	659267541983.2754