Year	constant 2015 US$
1965	6770970912.615691
1966	6989446806.305442
1967	7446820744.972162
1968	7926398632.528297
1969	8479441437.960403
1970	9016310996.436445
1971	9785499651.894764
1972	10834156530.232552
1973	11758361644.920845
1974	12737939570.59088
1975	12895560196.697432
1976	13460801467.967482
1977	13654743368.739553
1978	15016311455.6269
1979	15935308236.197317
1980	16128290707.18267
1981	15701207341.248121
1982	15475056008.170439
1983	15652002293.441519
1984	16589228242.512684
1985	17079222797.575117
1986	18094984936.668884
1987	19219985022.60753
1988	19584294261.020714
1989	20684349169.586853
1990	21558389806.681828
1991	21610706883.466774
1992	21161592626.186275
1993	20895845489.65471
1994	21277012463.151726
1995	22534519358.211143
1996	22117823075.0056
1997	22210423649.681484
1998	22146453244.922047
1999	20292679153.726334
2000	22657134552.209377
2001	23316954376.58637
2002	23815628151.54673
2003	24981739563.874588
2004	26966472907.341064
2005	28175839429.449333
2006	30230342918.110962
2007	32577356933.651096
2008	32693704636.985565
2009	31495578601.08046
2010	32088623634.377777
2011	33881618335.29391
2012	34162822345.547436
2013	34678545394.1836
2014	35680813384.03664
2015	36395677015.80955
2016	37569001660.40824
2017	36886598673.139305
2018	37430770376.5093
2019	37880477957.1093
2020	34376916708.736565
2021	39054532054.39348
2022	42776199655.725494
2023	41257650594.46467