Year	Percent
2003-01-01	38.050
2004-01-01	38.125
2005-01-01	38.075
2006-01-01	38.100
2007-01-01	38.400
2008-01-01	38.525
2009-01-01	39.550
2010-01-01	38.925
2011-01-01	37.925
2012-01-01	37.425
2013-01-01	37.375
2014-01-01	36.475
2015-01-01	37.050
2016-01-01	36.950
2017-01-01	36.900