Year	constant 2015 US$
1960	22243616671.248474
1961	23345372059.347706
1962	24334423374.736122
1963	25230465239.503124
1964	25202003329.96069
1965	25461718244.33678
1966	28310704442.980316
1967	29208652239.07839
1968	30346620322.46791
1969	32008211283.53781
1970	32085846221.421906
1971	36276481036.69745
1972	38976931651.941154
1973	36842288527.83883
1974	31566416394.334938
1975	28025704172.945385
1976	28078180817.259335
1977	31949254474.363335
1978	34313752920.32301
1979	36692101135.62024
1980	38299182460.621376
1981	42483210047.28262
1982	36930088432.82195
1983	35058463835.73786
1984	35201916935.58826
1985	35047917682.37262
1986	36768795405.432175
1987	38845493349.98357
1988	41377497057.00999
1989	45193625849.3049
1990	46099608402.23961
1991	49857516911.15209
1992	56201640392.98737
1993	60163113242.897835
1994	64636941119.75078
1995	70571552550.84583
1996	76475101805.43791
1997	81856147869.35728
1998	85725735450.18564
1999	85237702433.73285
2000	88416315389.6543
2001	90201981331.17938
2002	92498105340.1024
2003	95652772995.80954
2004	103349316754.99655
2005	110857192642.77661
2006	118634671376.87926
2007	126378400840.54094
2008	129711696656.79863
2009	131160446840.9682
2010	144224643902.0376
2011	155780932516.99997
2012	164896946266.11444
2013	173031988948.36783
2014	177664447993.689
2015	182728804782.27707
2016	190177822130.91977
2017	197331801789.75177
2018	204527196530.07745
2019	205973687865.0004
2020	192299552224.03946
2021	229819452829.30072
2022	235739038340.58282
2023	226545466426.66394