Year	constant 2010 US$
1960	599.116100721465
1961	618.74079260957
1962	585.840754977633
1963	571.584987285929
1964	572.867726445928
1965	567.331190898483
1966	559.619764781115
1967	573.69218083169
1968	569.776276983151
1969	598.290782182976
1970	601.335086337572
1971	598.42583331612
1972	589.685502217338
1973	592.240572915026
1974	620.117159850061
1975	611.825525297979
1976	632.579549139863
1977	642.845744246179
1978	635.73986591836
1979	604.683732040139
1980	562.217921194689
1981	537.624621098817
1982	561.527305851851
1983	500.260533737478
1984	532.210312274318
1985	539.232949224727
1986	546.574141566825
1987	509.944625002657
1988	509.591093701878
1989	509.870622334726
1990	488.077735168195
1991	473.278028015469
1992	430.792810492185
1993	419.90452429075
1994	427.993676350086
1995	446.331970088384
1996	417.394448388596
1997	428.606943024143
1998	438.027971257494
1999	443.271832373385
2000	422.451780755554
2001	431.639048422027
2002	437.826009122803
2003	405.75798518678
2004	421.535737733479
2005	417.095000226271
2006	428.538855606718
2007	439.747443820044
2008	440.86669437072
2009	471.633075350589
2010	487.945383289614
2011	504.746050229296
2012	528.129706797586
2013	336.929919528233
2014	336.098418497472
2015	349.166097359486
2016	363.049364422504
2017	374.417618733678
2018	384.780000778485