Year	constant 2015 US$
1960	1286.1033980530954
1961	1342.5160882082969
1962	1385.9116745735632
1963	1443.3822590103698
1964	1476.5739920748144
1965	1545.4304862039953
1966	1621.7725340844627
1967	1641.815299588403
1968	1729.618370812397
1969	1770.830366266594
1970	1832.2587254992118
1971	1969.1107570652705
1972	2104.3135199908284
1973	2295.075392243648
1974	2426.2261315793417
1975	2386.1388302754517
1976	2596.76395871399
1977	2727.3685740326196
1978	2833.486831419825
1979	3018.7080206815735
1980	3159.7425585932947
1981	3292.183445916881
1982	3398.5399530929153
1983	3517.0826525351604
1984	3688.4985994443714
1985	3548.788586662796
1986	3488.761248214394
1987	3561.31609661087
1988	3798.773972259513
1989	4022.309911644311
1990	4260.279935171119
1991	4537.325702339305
1992	4804.6735773951
1993	5135.031573842986
1994	5453.868957278496
1995	5826.870846706364
1996	6238.6485994460145
1997	6518.9960681069515
1998	5883.797040748285
1999	6089.106674968015
2000	6461.991273316935
2001	6330.628254245675
2002	6506.117927323922
2003	6716.643258156062
2004	7004.137745799985
2005	7209.617110447468
2006	7444.026735397054
2007	7742.578025499946
2008	7948.947618937362
2009	7675.238102934639
2010	8101.407120194397
2011	8393.9629789131
2012	8711.295854071212
2013	8976.5456139839
2014	9369.102158404869
2015	9699.600463427363
2016	9984.163680602336
2017	10416.041693437473
2018	10777.766521351823
2019	11114.560530573392
2020	10382.727479528197
2021	10605.676957988942
2022	11399.39713735103
2023	11691.3612742999