Year	Percent
2006-01-01	2.5292900000000000
2007-01-01	3.6588600000000000
2008-01-01	6.0715900000000005
2009-01-01	2.4885700000000000
2010-01-01	2.5947000000000000
2011-01-01	3.1610099999999997
2012-01-01	2.9281900000000003
2013-01-01	2.2771300000000000
2014-01-01	1.3312100000000000
2015-01-01	3.7473400000000003
2016-01-01	2.8423900000000000