Year	Percent
2005-01-01	61.750
2006-01-01	62.600
2007-01-01	63.225
2008-01-01	63.875
2009-01-01	64.350
2010-01-01	64.650
2011-01-01	65.075
2012-01-01	65.850
2013-01-01	66.325
2014-01-01	66.650
2015-01-01	66.850
2016-01-01	67.425
2017-01-01	67.700