Year	Percent
2003-01-01	34.450
2004-01-01	33.850
2005-01-01	33.775
2006-01-01	33.475
2007-01-01	34.225
2008-01-01	34.400
2009-01-01	32.600
2010-01-01	33.150
2011-01-01	32.475
2012-01-01	30.950
2013-01-01	31.075
2014-01-01	29.725
2015-01-01	29.850
2016-01-01	29.850
2017-01-01	30.975