Year	Measure
1971	360.57809
1972	367.86437
1973	388.58128
1974	386.35347
1975	409.60243
1976	434.11769
1977	451.51055
1978	458.77657
1979	474.29726
1980	464.32149
1981	460.09077
1982	456.44968
1983	411.67045
1984	446.36768
1985	475.35931
1986	490.32457
1987	531.91146
1988	596.04055
1989	656.26507
1990	741.28271
1991	795.48006
1992	839.03274
1993	877.34767
1994	961.32254
1995	1040.88231
1996	1151.11683
1997	1158.85033
1998	1073.62049
1999	1133.14494
2000	1148.15142
2001	1170.6684
2002	1283.85144
2003	1380.39274
2004	1481.4146
2005	1513.25534
2006	1533.72444
2007	1589.75041
2008	1624.46844
2009	1610.32145
2010	1753.34303
2011	1742.93734
2012	1860.09761
2013	1991.63558
2014	1969.63366