Year	constant 2015 US$
1960	750.8123139770615
1961	769.2637841862215
1962	778.3984226596326
1963	837.888755406452
1964	910.016811367616
1965	930.205340824924
1966	952.5845926691792
1967	936.6913536024354
1968	899.5406136605446
1969	924.9878935745728
1970	954.6995754611137
1971	971.8099309559386
1972	980.1469866309972
1973	992.927982179016
1974	986.883356307087
1975	1051.6677911386516
1976	1165.0811730885416
1977	1240.9201949269816
1978	1315.5976921464128
1979	1341.363601147408
1980	1438.005604320833
1981	1504.1054645564648
1982	1610.4697465869203
1983	1647.29938266596
1984	1758.7133462279683
1985	1810.020409044467
1986	1844.7075634201562
1987	1864.0465109156014
1988	1913.0935112119753
1989	1954.4168790141416
1990	2012.8799781238324
1991	1987.0366503775538
1992	2028.224740770752
1993	2039.6938616881769
1994	2073.653323203404
1995	2122.880541693218
1996	2181.252772283054
1997	2251.9886344560086
1998	2327.1015407796003
1999	2416.3623261992516
2000	2517.580505636165
2001	2553.528409070078
2002	2560.4574089242965
2003	2587.6305081052715
2004	2639.347068606764
2005	2703.222583441844
2006	2832.54820018374
2007	2974.6878714540762
2008	3125.747530153166
2009	3208.452267454319
2010	3305.8832471531296
2011	3290.7618277471947
2012	3288.794354932965
2013	3283.740719933082
2014	3301.204443484684
2015	3370.382447160154
2016	3444.2682619357224
2017	3517.5878945715954
2018	3635.4205822839667
2019	3769.035769921172
2020	3835.784214900045
2021	3896.8428528144027
2022	4088.897045395653
2023	4177.614459819184