Year	Percent
2005-01-01	3.39
2006-01-01	3.65
2007-01-01	4.52
2008-01-01	4.45
2009-01-01	4.70
2010-01-01	4.60
2011-01-01	3.82
2012-01-01	3.51
2013-01-01	3.73
2014-01-01	4.19