Year	Measure
1971	116.70402
1972	89.98087
1973	148.79285
1974	119.98575
1975	101.1571
1976	119.53487
1977	125.25619
1978	127.62241
1979	125.06866
1980	156.62133
1981	148.68704
1982	168.42132
1983	171.76505
1984	173.36598
1985	176.41204
1986	183.9059
1987	209.90837
1988	215.07145
1989	211.56309
1990	208.46279
1991	241.58437
1992	250.71188
1993	206.30825
1994	205.49939
1995	223.05289
1996	219.58993
1997	225.9439
1998	234.4466
1999	257.28765
2000	265.55838
2001	286.28463
2002	269.56661
2003	291.15086
2004	308.97267
2005	320.04088
2006	333.26839
2007	317.27429
2008	325.51792
2009	351.48561
2010	331.78453
2011	272.73997
2012	240.15156
2013	323.17309