Year	Percent
2005-01-01	77.225
2006-01-01	78.250
2007-01-01	79.125
2008-01-01	79.375
2009-01-01	77.725
2010-01-01	77.325
2011-01-01	77.250
2012-01-01	76.525
2013-01-01	75.850
2014-01-01	76.050
2015-01-01	76.575
2016-01-01	77.375
2017-01-01	78.125