Year	Measure
1971	125.22024
1972	138.90384
1973	152.14821
1974	157.7198
1975	163.16835
1976	178.68563
1977	192.30587
1978	205.85149
1979	222.27513
1980	236.51529
1981	248.34726
1982	261.79034
1983	280.04735
1984	282.51702
1985	294.04488
1986	306.63742
1987	310.54016
1988	340.08268
1989	334.70931
1990	358.13141
1991	370.40893
1992	400.8686
1993	400.83976
1994	420.06899
1995	429.83935
1996	432.58336
1997	450.01238
1998	478.7533
1999	452.39668
2000	489.08788
2001	523.92187
2002	534.96216
2003	580.45291
2004	610.982
2005	633.10362
2006	686.73305
2007	715.8485
2008	732.12983
2009	744.29749
2010	774.36839
2011	823.88831
2012	874.42805
2013	878.58693
2014	901.12845