Year	constant 2015 US$
1961	623.8249817835275
1962	651.8433871428068
1963	651.7774582366955
1964	664.76426868021
1965	670.1169248590105
1966	674.2323858196644
1967	670.344187538152
1968	686.7388327348801
1969	697.7070217942008
1970	686.0902258699717
1971	688.4704658976848
1972	671.1081257873279
1973	671.9887186658852
1974	695.3378525328849
1975	686.2280647215263
1976	701.2022855181234
1977	704.2800814977205
1978	706.8116523446257
1979	696.4868019136723
1980	690.0222470381653
1981	696.8381220381252
1982	684.9656661126481
1983	673.9088757706509
1984	666.7807762658406
1985	664.9069546374697
1986	668.2309628806482
1987	674.4313164409557
1988	677.7148977110205
1989	669.9053323570422
1990	660.7935962676693
1991	656.4426300174592
1992	647.0755787297977
1993	643.557223100844
1994	634.0456576069986
1995	650.5295446389022
1996	667.0879189859805
1997	687.3484230293758
1998	699.3740670288742
1999	708.2900270451955
2000	720.257794113129
2001	729.9455330177376
2002	740.8799953477703
2003	757.3356806283158
2004	782.6225888450332
2005	811.4789309144668
2006	842.3068939087789
2007	874.0224480394701
2008	904.7874416743824
2009	922.4100475083443
2010	959.599137825464
2011	973.2827005264231
2012	975.0813316714879
2013	1001.7469555203759
2014	1033.1429600249778
2015	1042.1553545765687
2016	1063.230850933619
2017	1093.6713205775884
2018	1119.854694751127
2019	1148.4509227062454
2020	1119.2821632234488
2021	1135.1743457294922
2022	1158.8107363400488
2023	1178.6162287117584