Year	Measure
1995	3.18
1996	3.3
1997	2.66
1998	3.3
1999	3.4
2000	3.3
2001	3.7
2002	3.6
2003	3.6
2004	3.6
2005	3.5
2006	3.3
2007	3.5
2008	3.6
2009	3.3
2010	3.1
2011	2.97085