Year	constant 2015 US$
1960	655.4165033112496
1961	653.7181547094267
1962	660.9712944708375
1963	664.1521494784386
1964	666.804456398414
1965	647.3862724718512
1966	649.0767225440534
1967	547.8909463863548
1968	592.7340871850749
1969	587.6655768478881
1970	579.8175387651742
1971	616.7099830892826
1972	590.8808411174729
1973	571.6198703282838
1974	608.0184810774481
1975	692.1406921284763
1976	625.0798663400283
1977	729.2788765930421
1978	788.4393500639593
1979	823.9903126865929
1980	683.5965712538671
1981	782.2465658692798
1982	870.3283205383669
1983	845.7728915860623
1984	827.002861306967
1985	848.7490513640645
1986	1021.1190739878748
1987	1034.9901318158732
1988	885.2638774342106
1989	744.3908736657802
1990	706.8242266576698
1991	669.4301675355226
1992	585.972849287455
1993	660.6259015996978
1994	670.3934821619455
1995	655.9476653929023
1996	673.1954101604452
1997	706.628808277485
1998	731.7807172200274
1999	755.8735124470454
2000	789.2694075711098
2001	808.3246150586715
2002	817.9730861652663
2003	850.5741111949035
2004	875.9776449810549
2005	898.610428379202
2006	897.2555946732847
2007	891.1283011999361
2008	912.3040687021147
2009	927.3389339364408
2010	915.8069237626138
2011	919.8385452257434
2012	940.50899923535
2013	966.940696703469
2014	991.4207099757043
2015	1022.5762976684241
2016	1016.2531670417517
2017	1034.3083661277733
2018	1057.6544995398087
2019	1070.3982828719377
2020	1044.4230483158547
2021	1065.382563538337
2022	1081.3353620198577
2023	1085.0964674878687