Year	Measure
1971	221.84889
1972	240.13858
1973	248.67079
1974	260.68752
1975	295.58835
1976	316.77967
1977	331.39263
1978	351.40969
1979	378.52778
1980	437.33146
1981	449.26561
1982	462.37958
1983	429.43812
1984	419.4207
1985	405.70148
1986	375.86561
1987	341.401
1988	349.81534
1989	365.42261
1990	380.7611
1991	384.86477
1992	399.68818
1993	418.96059
1994	452.15687
1995	497.50367
1996	524.43368
1997	560.81417
1998	555.90167
1999	535.84875
2000	588.17758
2001	449.19263
2002	528.73588
2003	539.9023
2004	531.07789
2005	569.2204
2006	700.31166
2007	561.01609
2008	586.82074
2009	601.30859
2010	644.49859
2011	669.81973
2012	757.99795
2013	750.28374
2014	788.80435