Year	constant 2010 US$
1960	706.516102026359
1961	682.692000448096
1962	609.802670629365
1963	541.420871405716
1964	537.316716164058
1965	524.922930453711
1966	468.962163286819
1967	436.224773329196
1968	481.420584115738
1969	525.400874838752
1970	537.239680297896
1971	515.649473872082
1972	496.649527161314
1973	473.200289310943
1974	443.535723158608
1975	437.632204834957
1976	501.869978409601
1977	424.658791626574
1978	464.546348462092
1979	398.686112810518
1980	465.248247020124
1981	539.765240372421
1982	771.666036156162
1983	621.658532577717
1984	647.473201658722
1985	653.363890306597
1986	592.164617220409
1987	583.73435959934
1988	570.017423166418
1989	556.949026137795
1990	505.780523433737
1991	567.733425109323
1992	427.922164190808
1993	473.870387127319
1994	549.693963923916
1995	634.865892593423
1996	705.308853513029
1997	677.315650121702
1998	369.743478316341
1999	691.472277230486
2000	654.823956503323
2001	779.751326122452
2002	560.348833051307
2003	607.513103853161
2004	633.390135166571
2005	712.378213408017
2006	719.386032167731
2007	765.733720203604
2008	901.772715666102
2009	930.405134263715
2010	1084.96148436105
2011	967.271980534762
2012	695.015937006126
2013	887.5237224505
2014	787.039371659115
2015	824.537023652937
2016	896.969160759707
2017	611.646078166768
2018	475.807042540918