Year	Percent
2005-01-01	43.150
2006-01-01	42.850
2007-01-01	42.775
2008-01-01	42.550
2009-01-01	42.600
2010-01-01	42.650
2011-01-01	42.675
2012-01-01	42.425
2013-01-01	42.425
2014-01-01	42.400
2015-01-01	42.450
2016-01-01	42.250
2017-01-01	42.050