Year	Measure
1995	1.94
1996	2.65
1997	2.72
1998	2
1999	1.7
2000	1.7
2001	1.9
2002	1.9
2003	1.9
2004	2
2005	2.2
2006	2.4
2007	2.3
2008	2.6
2009	2.8
2010	2.8
2011	3.02781