Year	Percent
1994	1.52
1995	1.23
1996	1.34
1997	0.81
1998	1.4
1999	2.11
2000	1.71
2001	2.34
2002	2.61
2003	2.72
2004	1.96
2005	2.39
2006	1.74
2007	1.16
2008	1.3
2009	1.14
2010	0.94
2011	1.08
2012	1.13
2013	0.64