Year	constant 2015 US$
1960	4786769643.404839
1961	5648628634.097537
1962	6030264879.079437
1963	5921716676.1862955
1964	6330146464.9203005
1965	6513579187.530863
1966	6818613377.939439
1967	7220173027.249827
1968	7932606485.478865
1969	7792112134.265906
1970	8237640675.88744
1971	7996498782.118498
1972	8739847867.753809
1973	7121930033.492109
1974	7492574055.396223
1975	7665014554.928999
1976	7928140894.853514
1977	8954539724.741829
1978	10113532245.505943
1979	11798433939.147907
1980	10638754404.441431
1981	10364635841.43913
1982	11392752206.18335
1983	10085364673.869118
1984	10834553378.014503
1985	11279051398.722496
1986	9774490864.950468
1987	9424800768.288385
1988	8796183011.02747
1989	10451199598.1767
1990	9230719329.571217
1991	9763842148.84386
1992	10190477807.05045
1993	10507191234.479174
1994	12544874587.523846
1995	13234980092.62613
1996	14412865496.80519
1997	16300779810.41502
1998	17350880621.31481
1999	18555903076.21716
2000	20003097945.80199
2001	21363385551.67807
2002	23034203459.501617
2003	24492390552.16423
2004	28096465693.79348
2005	32075306940.98101
2006	32454538637.164642
2007	34616571513.77678
2008	37310353181.77683
2009	36081972252.83419
2010	37248178419.9931
2011	39292731912.461395
2012	40513212181.06688
2013	40284436538.26045
2014	38752395446.79396
2015	40403976964.23138
2016	45151586812.9216
2017	49128023511.31087
2018	50780292042.69065
2019	50946892923.713356
2020	42799594581.24647
2021	48952834956.00864
2022	51162958808.58609
2023	53786665054.46526