Year	Percent
1995-01-01	1.2856600000000000
1996-01-01	1.6378300000000000
1997-01-01	1.1803500000000000
1998-01-01	1.5793900000000000
1999-01-01	1.7504200000000000
2000-01-01	1.8730099999999998
2001-01-01	1.9347599999999998
2002-01-01	1.5861299999999998
2003-01-01	2.0357600000000000
2004-01-01	1.1208600000000000
2005-01-01	1.0983100000000001
2006-01-01	1.2974500000000000
2007-01-01	1.4561400000000000
2008-01-01	2.2754400000000000
2009-01-01	2.4186600000000000
2010-01-01	2.8185700000000002
2011-01-01	3.4134800000000003
2012-01-01	3.2750600000000000
2013-01-01	3.8335000000000000