Year	Percent
2003-01-01	67.350
2004-01-01	66.050
2005-01-01	70.475
2006-01-01	72.050
2007-01-01	74.225
2008-01-01	71.700
2009-01-01	61.525
2010-01-01	61.725
2011-01-01	62.500
2012-01-01	65.400
2013-01-01	69.700
2014-01-01	70.500
2015-01-01	73.100
2016-01-01	77.600
2017-01-01	75.775