Year	Percent
2005-01-01	30.100
2006-01-01	29.600
2007-01-01	29.200
2008-01-01	28.775
2009-01-01	28.675
2010-01-01	28.675
2011-01-01	28.550
2012-01-01	28.025
2013-01-01	27.825
2014-01-01	27.675
2015-01-01	27.525
2016-01-01	27.175
2017-01-01	26.925