Year	Percent
2003-01-01	65.100
2004-01-01	64.900
2005-01-01	65.100
2006-01-01	60.400
2007-01-01	61.300
2008-01-01	64.125
2009-01-01	66.625
2010-01-01	65.850
2011-01-01	65.050
2012-01-01	65.700
2013-01-01	66.325
2014-01-01	66.750
2015-01-01	65.400
2016-01-01	64.275
2017-01-01	63.625