Year	Percent
2006-01-01	26.675
2007-01-01	26.575
2008-01-01	26.175
2009-01-01	25.975
2010-01-01	25.450
2011-01-01	24.375
2012-01-01	25.000
2013-01-01	24.425
2014-01-01	23.475
2015-01-01	22.975
2016-01-01	22.425
2017-01-01	21.825