Year	constant 2015 US$
1961	6137829834.364091
1962	5856098258.058295
1963	5227504980.614439
1964	4983069469.118647
1965	4856664332.920003
1966	5024455669.665019
1967	5032592899.793418
1968	5556472161.508929
1969	5820283202.691588
1970	6092068996.383879
1971	6735403513.061679
1972	7930447182.127945
1973	7878531024.949482
1974	8514705256.35544
1975	9124026071.467636
1976	9842712161.11329
1977	10178456507.124126
1978	10833997304.526375
1979	11545522371.756102
1980	12402054611.396828
1981	13085912934.96649
1982	13021302861.976946
1983	13630949504.460909
1984	14414571426.666935
1985	15228789050.443975
1986	15008430237.26418
1987	16014200843.114038
1988	16025756542.69484
1989	16305678292.52052
1990	17601950274.697685
1991	18289226397.40802
1992	19716833823.73137
1993	20148598741.369198
1994	20789004085.008247
1995	21277892826.370564
1996	22798428275.989098
1997	24038877877.618694
1998	25188840697.722157
1999	26713932931.462185
2000	27972151936.746063
2001	29034050813.979366
2002	29418042728.457645
2003	30801396632.29496
2004	32722107265.807785
2005	33862978438.273853
2006	35638786833.82444
2007	38029978711.5099
2008	39641606104.30343
2009	40848078614.32767
2010	42061729256.05539
2011	41200879648.1279
2012	42938187711.576004
2013	43981556030.35939
2014	45340730384.707016
2015	45779494041.92953
2016	46291045987.634094
2017	47326964919.9643
2018	48569264671.684204
2019	49340470115.968956
2020	45101222687.340126
2021	47178218215.60609
2022	48406720424.4709
2023	48611794724.78902