Year	constant 2015 US$
1960	8747571197.901281
1961	9082601698.343145
1962	9206004979.55974
1963	9522609483.040052
1964	10271641644.079346
1965	10196151897.905153
1966	10308911561.04646
1967	10331254148.73709
1968	10763500642.407722
1969	11836929271.204498
1970	12045251394.033588
1971	12366526384.694525
1972	13182494340.333977
1973	14278311403.8371
1974	14879781670.383583
1975	13901975726.466005
1976	14254298216.345303
1977	14478058119.04921
1978	15068034941.561708
1979	15421472491.896084
1980	15551149030.013662
1981	15465469116.060928
1982	15640430422.809366
1983	16107934774.403116
1984	17104522552.533195
1985	17582030272.34882
1986	19337409478.32577
1987	20101425602.3746
1988	21802666126.853504
1989	23938905603.76952
1990	25212438894.528503
1991	27391849518.018738
1992	27890285979.49022
1993	29061859473.652325
1994	30172289931.43787
1995	30604417464.51404
1996	31032290015.65467
1997	32714188401.91131
1998	34897700894.55818
1999	37750651303.918335
2000	40369840661.378494
2001	41610952875.960526
2002	42953079582.15662
2003	44078183347.92068
2004	45943524157.46169
2005	47084244317.1613
2006	49917169128.35857
2007	53959794734.691376
2008	53797820276.327705
2009	52055333610.13982
2010	54012829450.86326
2011	54576884723.71209
2012	55477349852.56287
2013	57236975164.37224
2014	58738350255.759735
2015	60071584216.13747
2016	63062062076.82926
2017	63892707778.498795
2018	64671765568.80582
2019	66557495896.73784
2020	65951935965.67651
2021	70679635853.89018
2022	71655146215.63705
2023	70870003856.63783