Year	constant 2015 US$
1960	911.3343197456179
1961	940.1549905874866
1962	956.4593079055284
1963	958.2542080057899
1964	979.5361416181189
1965	1003.1313165693111
1966	1013.5296499459688
1967	997.7762441790363
1968	988.6070944896697
1969	1027.2907941638355
1970	1036.837326720495
1971	1074.9526794887965
1972	1105.5509885528902
1973	1174.0154027073595
1974	1248.9007571933944
1975	1211.353040098831
1976	1249.0787291907745
1977	1340.9655615900815
1978	1441.3527286212548
1979	1555.869883435048
1980	1707.6576855346914
1981	1748.1990432699986
1982	1759.4763947478857
1983	1768.2837955622704
1984	1831.9076716532268
1985	1786.8882852127676
1986	1561.4573326668385
1987	1546.4685193505804
1988	1676.9325118295853
1989	1845.0074322255582
1990	2005.76948061169
1991	2126.453247550781
1992	2164.2413766400805
1993	2236.3939163075697
1994	2379.1048855795707
1995	2584.1274398318938
1996	2687.8265280588157
1997	2729.7689161324565
1998	2387.2870363848087
1999	2394.293036402473
2000	2638.238027605841
2001	2649.1395625913206
2002	2683.3381782418
2003	2831.04717587072
2004	3036.9805899194203
2005	3238.17573324812
2006	3375.9301925545415
2007	3648.247460229419
2008	3884.384702454014
2009	3829.3645764861126
2010	4020.8099483857945
2011	4228.143528445912
2012	4507.469277110531
2013	4758.079062514054
2014	5011.583078396948
2015	5234.085468663997
2016	5459.927152657688
2017	5755.078643933984
2018	6133.107772030319
2019	6523.111382473516
2020	6191.057278757091
2021	6236.57602016024
2022	6857.8222665054955
2023	7104.878938052867