Year	constant 2015 US$
1960	1016.6393897907947
1961	1015.5859631547062
1962	1030.7852567259304
1963	1050.294794892262
1964	1114.5939793548453
1965	1171.4298881361249
1966	1212.3723441105026
1967	1227.2093968985719
1968	1279.9159091690422
1969	1351.267162450673
1970	1427.284250322938
1971	1483.9158081446053
1972	1560.630465130669
1973	1643.5447114312187
1974	1710.672597758872
1975	1753.2319387343
1976	1833.9892176706812
1977	1879.9863904854399
1978	1917.713895264067
1979	1989.9608215322137
1980	2047.7414831066933
1981	2050.435718653266
1982	2075.4401052607263
1983	2068.6067526459005
1984	2143.4390919427688
1985	2206.3722142355505
1986	2248.0146654499727
1987	2317.4561209283215
1988	2353.8567805984885
1989	2383.5288497459087
1990	2408.1012397906716
1991	2443.5778051988177
1992	2517.925524279212
1993	2631.0726876870676
1994	2741.1716580881157
1995	2827.164052518694
1996	2966.299994824507
1997	3109.478975182646
1998	3165.3947737449002
1999	3232.3602981325957
2000	3390.4815101368
2001	3472.621005818708
2002	3605.986982808649
2003	3784.647381554023
2004	4046.9487614232007
2005	4313.447693921893
2006	4646.702250310707
2007	5045.618094376572
2008	5319.0818702789065
2009	5459.149631139736
2010	5877.999995799375
2011	6234.3097994899945
2012	6534.047353060717
2013	6839.231967407058
2014	7113.163736276898
2015	7372.179962473979
2016	7646.7748504204665
2017	7991.628678776972
2018	8321.049574341345
2019	8603.36537634335
2020	8505.601736893073
2021	9124.724088673938
2022	9418.225815697262
2023	9801.905947798592