Year	constant 2015 US$
1960	35972245442.051025
1961	37963274505.301506
1962	40474335468.7708
1963	42851677367.70296
1964	45555938475.57466
1965	48958506295.02358
1966	50954989841.964615
1967	54799280148.220024
1968	59662995317.81296
1969	60928293017.81883
1970	66481201352.32694
1971	70890003936.00429
1972	76572330934.3375
1973	85148946573.30975
1974	86122079248.93202
1975	82377809425.47852
1976	88062068085.75429
1977	92995831146.0664
1978	95614562274.70273
1979	101006207990.82109
1980	105641726219.54297
1981	107351119444.7422
1982	109643468494.88203
1983	109453660796.14415
1984	107395954860.65234
1985	110411030622.1293
1986	114983102465.71367
1987	122320627422.59064
1988	131481351670.3969
1989	139949591199.7258
1990	145478331657.14844
1991	151833125542.3863
1992	153487311625.17383
1993	150351141407.78827
1994	151801786241.2777
1995	158303123479.59647
1996	163850456044.5273
1997	171061297929.0656
1998	179285861799.3039
1999	186289802829.5113
2000	193398953419.57224
2001	197157995297.65152
2002	198677933649.21207
2003	196829193371.54056
2004	200349947385.1261
2005	201916379874.36826
2006	205197590054.8679
2007	210341031080.27606
2008	211012540457.55612
2009	204424561357.60846
2010	207976694614.76666
2011	204449067168.8237
2012	196153968235.58972
2013	194344164093.78894
2014	195883739714.00067
2015	199394066525.44012
2016	203420800578.6405
2017	210553436228.05728
2018	216552789892.1932
2019	222362381347.61975
2020	203905155102.50415
2021	215604085361.88385
2022	230324477738.9389
2023	235532701003.00494