Year	constant 2015 US$
1960	31564774862.037674
1961	32586601050.819252
1962	34236314296.733788
1963	36018961412.476006
1964	38136648936.42107
1965	40388995725.5544
1966	41905696674.579414
1967	44521709749.489105
1968	47954070111.14586
1969	50416836707.20995
1970	53487256178.45094
1971	56103269253.36064
1972	58187233140.71226
1973	61545558355.98711
1974	65816225581.70759
1975	69129141528.17404
1976	71110444391.57024
1977	70945512280.5097
1978	72490839107.10825
1979	74665699959.13847
1980	79466690977.05644
1981	83626305483.20407
1982	84705305000.07083
1983	86599083262.44774
1984	91661001115.1248
1985	91479207185.76755
1986	92145758784.39021
1987	95253274255.88399
1988	98273265126.35849
1989	100244294044.65295
1990	100878376839.67168
1991	101078208993.25334
1992	100933746345.33443
1993	101655388225.75153
1994	105073328862.3341
1995	110053088305.31642
1996	114674641523.1972
1997	117279619479.15643
1998	120758938742.09387
1999	126027332202.80634
2000	131787212272.73534
2001	136794237511.18463
2002	142368627400.01703
2003	148777242204.72635
2004	155391549907.55115
2005	163580454969.31094
2006	173901950069.23996
2007	184515202309.35593
2008	191938291910.83392
2009	192440779115.40833
2010	195799375554.99115
2011	203043226961.14706
2012	208870679748.34842
2013	214449769465.13165
2014	218824064932.23315
2015	222249906162.01462
2016	225792269206.84128
2017	228387006274.70532
2018	233142886909.34756
2019	235525904610.33798
2020	225824642196.10373
2021	234323275692.6203
2022	242247439925.33365
2023	245473667914.99118