Year	Percent
2003-01-01	41.900
2004-01-01	41.900
2005-01-01	41.950
2006-01-01	42.025
2007-01-01	41.925
2008-01-01	42.250
2009-01-01	42.950
2010-01-01	42.625
2011-01-01	41.275
2012-01-01	40.825
2013-01-01	40.775
2014-01-01	39.725
2015-01-01	40.225
2016-01-01	39.775
2017-01-01	40.300