Year	Percent
2005-01-01	56.825
2006-01-01	58.050
2007-01-01	59.300
2008-01-01	60.225
2009-01-01	60.350
2010-01-01	61.225
2011-01-01	62.975
2012-01-01	63.500
2013-01-01	64.225
2014-01-01	64.750
2015-01-01	65.100
2016-01-01	66.225
2017-01-01	66.825