Year	Measure
1960	530.66485
1961	557.59929
1962	605.22353
1963	623.51818
1964	683.68555
1965	714.72158
1966	790.7917
1967	881.38325
1968	993.66457
1969	1049.79116
1970	1123.10299
1971	1244.90323
1972	1295.60968
1973	1473.95233
1974	1580.12602
1975	1607.74131
1976	1707.88619
1977	1661.17907
1978	1757.39626
1979	1768.79418
1980	1805.59073
1981	1820.10412
1982	1760.39991
1983	1781.47221
1984	1813.42444
1985	1843.19325
1986	1875.77819
1987	1916.76755
1988	2065.72244
1989	2269.01333
1990	2317.47677
1991	2397.71417
1992	2430.37452
1993	2318.98299
1994	2436.01236
1995	2537.07268
1996	2489.34042
1997	2634.64913
1998	2756.21891
1999	2877.98241
2000	3003.76167
2001	3060.88181
2002	3107.86734
2003	3157.22726
2004	3238.50245
2005	3251.39713
2006	3194.08125
2007	3180.03342
2008	3026.33841
2009	2757.69141
2010	2742.87718
2011	2689.68434
2012	2683.36793
2013	2512.10592
2014	2464.64129
2015	2571.34096