Year	Measure
1971	566.94468
1972	541.48499
1973	667.86261
1974	771.99638
1975	813.71849
1976	898.33504
1977	974.7057
1978	913.43919
1979	999.33162
1980	984.23349
1981	1065.65118
1982	1197.04526
1983	981.22121
1984	1095.4515
1985	1136.15173
1986	1099.24889
1987	1078.78985
1988	1063.74179
1989	1209.48336
1990	1233.03706
1991	1339.52221
1992	1388.6332
1993	1476.59453
1994	1619.15361
1995	1670.82349
1996	1585.27746
1997	1742.25072
1998	1741.25973
1999	1939.99286
2000	1860.2582
2001	1989.27671
2002	2030.70656
2003	2073.27631
2004	2234.88176
2005	2451.90981
2006	2533.59224
2007	2650.78795
2008	2808.94974
2009	2771.52776
2010	2739.56588
2011	2759.43624
2012	2835.04128
2013	2853.53714
2014	3023.49044