Year	Percent
2005-01-01	83.675
2006-01-01	84.825
2007-01-01	86.425
2008-01-01	87.025
2009-01-01	86.100
2010-01-01	86.775
2011-01-01	87.975
2012-01-01	88.375
2013-01-01	88.175
2014-01-01	88.050
2015-01-01	88.150
2016-01-01	88.050
2017-01-01	88.325