Year	constant 2015 US$
1960	3799477002.8911376
1961	4023508810.7631807
1962	4133007536.833124
1963	4449924251.922018
1964	4630911555.671258
1965	4824485101.010231
1966	4825995427.827433
1967	5361909483.826989
1968	5738232409.010535
1969	6079314395.538137
1970	6472250908.483013
1971	7085946759.730173
1972	8010266351.836945
1973	8952961578.688038
1974	10270217683.538912
1975	11060621689.88027
1976	11293463635.090729
1977	11398683022.572695
1978	11741275331.902002
1979	12175242374.621336
1980	12630605701.703897
1981	12252520729.13581
1982	13177480053.91421
1983	12594198517.61027
1984	11215476512.703907
1985	11169263498.78288
1986	11184152718.159588
1987	11662640874.50681
1988	12644099983.540382
1989	13469655411.499374
1990	14357293209.41652
1991	14084100034.590654
1992	13957747734.272821
1993	14743722581.482012
1994	15525207199.2943
1995	16258057204.450872
1996	16799284227.519016
1997	17467815747.346592
1998	17432768555.34179
1999	16799870353.326515
2000	16638873416.429552
2001	16418558536.854065
2002	15817783593.64477
2003	16484167726.898056
2004	16833003206.065922
2005	17334074092.16387
2006	19442937288.153606
2007	20824599381.600822
2008	20930779067.589535
2009	23241772343.626606
2010	24211773417.719822
2011	24673221247.960297
2012	28494766120.6031
2013	29902449746.836895
2014	30986384954.644676
2015	33438275358.197422
2016	36568457664.02774
2017	38947891213.006546
2018	44163168678.081345
2019	48183283894.063324
2020	53242968919.71746
2021	57074339932.56361
2022	60003724371.23795
2023	60334877497.77567