Year	Percent
2003-01-01	43.700
2004-01-01	43.700
2005-01-01	43.775
2006-01-01	43.850
2007-01-01	43.725
2008-01-01	43.625
2009-01-01	43.425
2010-01-01	43.475
2011-01-01	43.750
2012-01-01	43.550
2013-01-01	43.550
2014-01-01	43.875
2015-01-01	43.925
2016-01-01	44.050
2017-01-01	44.275