Year	Percent
2005-01-01	4.400
2006-01-01	4.500
2007-01-01	4.200
2008-01-01	4.100
2009-01-01	4.000
2010-01-01	5.375
2011-01-01	4.900
2012-01-01	4.850
2013-01-01	5.275
2014-01-01	4.950
2015-01-01	4.550
2016-01-01	4.450
2017-01-01	4.825