Year	Percent
1995-01-01	1.6131799999999998
1996-01-01	1.7364700000000002
1997-01-01	5.2021300000000000
1998-01-01	3.1363400000000000
1999-01-01	4.3794600000000000
2000-01-01	3.0095900000000000
2001-01-01	3.1209100000000000
2002-01-01	3.1342900000000000
2003-01-01	3.1766300000000000
2004-01-01	3.1845000000000000
2005-01-01	2.7764900000000003
2006-01-01	2.4229100000000000
2007-01-01	1.9049800000000000
2008-01-01	1.6281100000000000
2009-01-01	1.5642900000000000
2010-01-01	1.0210600000000000
2011-01-01	0.9602490000000000
2012-01-01	1.3389600000000000
2013-01-01	1.1074700000000002