Year	Percent
2005-01-01	55.600
2006-01-01	56.600
2007-01-01	58.100
2008-01-01	60.000
2009-01-01	59.600
2010-01-01	56.975
2011-01-01	58.400
2012-01-01	59.750
2013-01-01	61.300
2014-01-01	62.075
2015-01-01	63.925
2016-01-01	65.775
2017-01-01	65.750