Year	constant 2015 US$
1960	6694501128.557449
1961	6498219674.869443
1962	7010771683.474232
1963	6878072319.311933
1964	6764765888.123173
1965	6911006452.424645
1966	6871213789.452135
1967	6725703043.187331
1968	6939689176.201309
1969	7204226191.7440815
1970	7251136777.726792
1971	7721038031.594852
1972	7796480893.274333
1973	8167228671.566534
1974	8639285435.549448
1975	8736283400.77109
1976	9473523979.628557
1977	9824816121.511955
1978	10434825547.207256
1979	11223742331.105692
1980	12051458300.901295
1981	11707665179.616093
1982	11290433820.895458
1983	11392971447.753765
1984	11427254839.773611
1985	11496233326.073856
1986	11439039014.79418
1987	11348253230.338228
1988	11370998175.379536
1989	11039712740.233715
1990	11154318515.463446
1991	11364080463.800001
1992	10760655413.911957
1993	10176750400.457369
1994	8960564685.927517
1995	9847455167.827723
1996	10255215964.959808
1997	10532590219.795433
1998	10762394520.959404
1999	11054082104.344252
2000	11150259169.23753
2001	11112041891.95784
2002	11228920585.931648
2003	11619774577.796024
2004	11466642593.066505
2005	11818917734.005995
2006	12027964912.680347
2007	12594064682.478329
2008	12928818990.663616
2009	13690375422.771986
2010	12916662276.640003
2011	13575181302.273365
2012	13643386325.966433
2013	14233433330.502903
2014	14644604839.589191
2015	14849629308.602478
2016	15118774099.592813
2017	15498296353.597733
2018	15756778637.99762
2019	15485274058.24296
2020	14973407477.256065
2021	14704149691.210394
2022	14456828250.629444
2023	14187369712.67641