Year	constant 2015 US$
1965	4593423065.179406
1966	4852723646.348678
1967	5089812481.488963
1968	5315981071.601682
1969	5537469264.867008
1970	5608599855.630784
1971	5814673619.027709
1972	6211963308.310674
1973	6613747474.44429
1974	6945813107.642543
1975	7147429753.2517605
1976	7750495792.359156
1977	8150646080.840639
1978	8451101815.252183
1979	8224487834.347883
1980	7502338735.175496
1981	6855219292.757833
1982	6455997728.535525
1983	6567800722.585409
1984	6701741036.44657
1985	6824018301.017728
1986	6894554648.351228
1987	7039712328.802635
1988	7164181231.01615
1989	7205299316.900376
1990	7611628161.281107
1991	7820714006.534732
1992	8168675159.075699
1993	8461372767.968102
1994	8884748072.574415
1995	9370800494.07762
1996	9440104699.032328
1997	9739518228.763178
1998	9984946634.427553
1999	10215197847.71829
2000	10471602793.593151
2001	10490664133.234194
2002	10643649935.573582
2003	10846328632.773567
2004	11099643946.079157
2005	11465007582.640305
2006	11922489186.483728
2007	12021359664.76581
2008	12006860508.40999
2009	11944326906.25709
2010	12106028078.474424
2011	12604278338.462751
2012	13059813244.082632
2013	13460435465.04563
2014	13644918383.199345
2015	14066000000
2016	14484729769.178366
2017	14781816233.047323
2018	15259649379.15196
2019	15553552362.001774
2020	14500554908.5544
2021	16116106861.365477
2022	16723972455.345339
2023	17283315865.50877