Year	Percent
2001	4.67948
2002	5.85856
2003	5.11857
2004	4.32253
2005	4.923
2006	5.51358
2007	5.77021
2008	15.50604
2009	13.57719
2010	20.06168
2011	11.09105
2012	9.44757
2013	10.1149