Year	Percent
2005-01-01	64.125
2006-01-01	64.825
2007-01-01	65.550
2008-01-01	65.500
2009-01-01	63.400
2010-01-01	62.825
2011-01-01	62.750
2012-01-01	62.050
2013-01-01	61.425
2014-01-01	61.500
2015-01-01	62.025
2016-01-01	62.900
2017-01-01	63.700