Year	Percent
2005-01-01	38.275
2006-01-01	37.800
2007-01-01	37.425
2008-01-01	37.025
2009-01-01	36.950
2010-01-01	36.950
2011-01-01	36.775
2012-01-01	36.375
2013-01-01	36.300
2014-01-01	36.300
2015-01-01	36.225
2016-01-01	35.875
2017-01-01	35.775