Year	Percent
2005-01-01	37.800
2006-01-01	37.125
2007-01-01	36.850
2008-01-01	36.325
2009-01-01	35.925
2010-01-01	35.600
2011-01-01	35.225
2012-01-01	34.425
2013-01-01	33.950
2014-01-01	33.475
2015-01-01	33.200
2016-01-01	32.675
2017-01-01	32.200