Year	Percent
2006-01-01	3.0303000000000000
2007-01-01	2.4141100000000000
2008-01-01	2.3183900000000000
2009-01-01	2.5034799999999997
2010-01-01	2.5503400000000003
2011-01-01	2.2741599999999997
2012-01-01	3.3472800000000005
2013-01-01	2.8851700000000000
2014-01-01	2.5871800000000000
2015-01-01	2.6828000000000000
2016-01-01	2.9117400000000000