Year	Measure
1971	357.97505
1972	360.60044
1973	355.68646
1974	419.13072
1975	449.66125
1976	486.79033
1977	568.07378
1978	569.8215
1979	586.05202
1980	626.37716
1981	635.09273
1982	666.63541
1983	602.74351
1984	629.49419
1985	620.76388
1986	603.02143
1987	602.47025
1988	615.71862
1989	574.63249
1990	619.49223
1991	636.00424
1992	629.22095
1993	573.48764
1994	600.28747
1995	687.96022
1996	709.53806
1997	721.68747
1998	726.97999
1999	641.72347
2000	698.07625
2001	727.86006
2002	698.39528
2003	697.1797
2004	662.33766
2005	679.82254
2006	671.49328
2007	746.94894
2008	676.58709
2009	792.54278
2010	788.06423
2011	821.16825
2012	797.94984
2013	846.45323
2014	891.68862