Year	constant 2015 US$
1960	1388.3247971650362
1961	1399.8318385171078
1962	1396.5031871162175
1963	1519.6900923976402
1964	1637.709731581379
1965	1794.9324684302317
1966	1876.5165012806638
1967	1970.5278225146578
1968	2170.5760481056845
1969	2361.822743049653
1970	2491.845019874992
1971	2577.4366790495023
1972	2843.2069161988775
1973	2915.173281191389
1974	3059.9121229390903
1975	3063.393489628147
1976	3449.2771845495317
1977	3392.2871906184782
1978	3209.653095814495
1979	3091.8689808106033
1980	2853.3539150436563
1981	2683.9220981362723
1982	2895.831571037336
1983	2932.7389776752743
1984	2826.7220695689425
1985	2847.5804523642014
1986	2681.718694476378
1987	2606.4811565056975
1988	2554.1190226044146
1989	2545.920503814798
1990	2745.6954332314826
1991	2685.356501068411
1992	2737.0458084685606
1993	2719.1614042656015
1994	2718.380785860555
1995	2729.5461160629393
1996	2841.5891634721165
1997	2893.2328824634947
1998	3003.476876122682
1999	3071.294197378115
2000	3197.2537149078275
2001	3225.070724399029
2002	3270.679654393923
2003	3284.4159474771172
2004	3467.9251727408005
2005	3551.7795761893835
2006	3670.2565892920297
2007	3818.698151826925
2008	3885.4504935598443
2009	3907.6332081071096
2010	4037.5943559345496
2011	3922.674978479754
2012	3987.8404795632055
2013	3926.743015663701
2014	3918.9978992469073
2015	3869.315610704703
2016	4003.9726233527967
2017	4060.692962454593
2018	4064.8839055188914
2019	4040.5735394919284
2020	3804.3135133773785
2021	3980.8815178718673
2022	4095.5396749962015
2023	4146.965384318728