Year	Measure
1971	133.08727
1972	142.02945
1973	157.80388
1974	169.63014
1975	194.5048
1976	218.72878
1977	231.71042
1978	277.28474
1979	312.67388
1980	328.32214
1981	361.26762
1982	403.63145
1983	415.01225
1984	438.66194
1985	463.70841
1986	482.37463
1987	452.67358
1988	478.9868
1989	519.01062
1990	528.43494
1991	529.40521
1992	556.6369
1993	545.01759
1994	548.08763
1995	557.07978
1996	567.70475
1997	572.92777
1998	615.5777
1999	649.7839
2000	680.19597
2001	705.93479
2002	727.61264
2003	783.03236
2004	800.70431
2005	886.91458
2006	858.93401
2007	890.81435
2008	943.75574
2009	863.08597
2010	1012.69084
2011	1118.50881
2012	1231.97009
2013	1272.29602
2014	1356.26455