Year	constant 2015 US$
1960	1854.789665465186
1961	1878.5419676213169
1962	1888.6995762715828
1963	2009.3183396513343
1964	2042.4512023090058
1965	2071.6366540902786
1966	2125.3792080099465
1967	2152.8738249960534
1968	2279.8677644504087
1969	2326.8188143955113
1970	2398.7185940360146
1971	2471.7752892205503
1972	2590.8303704802643
1973	2702.948985809975
1974	2810.107820345523
1975	2800.958259374646
1976	2941.271196527344
1977	3100.406592863127
1978	3181.281370727977
1979	3252.584266274848
1980	3291.730581904065
1981	3228.2954658010303
1982	3032.2277738779794
1983	2875.0903963444325
1984	2811.285674924533
1985	2718.2517531777107
1986	2647.9525093387183
1987	2666.9282897211306
1988	2695.0865677425545
1989	2725.101410779992
1990	2733.8612382579486
1991	2758.6734202723997
1992	2817.225626533652
1993	2854.127404515553
1994	2896.217768552102
1995	2965.885979236037
1996	2981.1150409980105
1997	3038.707550935036
1998	3115.9713228267656
1999	3160.0733381216364
2000	3195.38807828092
2001	3192.302351888057
2002	3239.5608294193394
2003	3250.8347557157163
2004	3282.314640359835
2005	3320.157564868076
2006	3427.6715502670536
2007	3573.5926329909676
2008	3620.823369647237
2009	3570.2958420246496
2010	3606.423482149097
2011	3688.8589359130483
2012	3731.668471792143
2013	3802.146351514927
2014	3903.0519663491636
2015	3994.6290851901904
2016	4034.150577174493
2017	4091.2599830726567
2018	4163.476302213892
2019	4263.708443664353
2020	4124.143538535454
2021	4388.724072073441
2022	4504.129222839149
2023	4596.320079828739