Year	Percent
2004-01-01	1.0000000000000000
2005-01-01	3.0000000000000000
2006-01-01	3.0000000000000000
2007-01-01	3.0000000000000000
2008-01-01	1.8000000000000000
2009-01-01	3.0000000000000000
2010-01-01	3.0344500000000000
2011-01-01	2.0951900000000000
2012-01-01	2.4662900000000003
2013-01-01	3.6626400000000000
2014-01-01	4.1084900000000000
2015-01-01	3.9014599999999997
2016-01-01	3.5877800000000004