Year	Percent
2005-01-01	37.925
2006-01-01	37.450
2007-01-01	37.275
2008-01-01	36.900
2009-01-01	36.825
2010-01-01	36.725
2011-01-01	36.650
2012-01-01	36.250
2013-01-01	36.125
2014-01-01	35.925
2015-01-01	35.875
2016-01-01	35.600
2017-01-01	35.375