Year	Percent
2005-01-01	54.775
2006-01-01	53.675
2007-01-01	52.975
2008-01-01	52.125
2009-01-01	51.100
2010-01-01	50.425
2011-01-01	49.375
2012-01-01	47.500
2013-01-01	45.700
2014-01-01	44.125
2015-01-01	42.750
2016-01-01	40.925
2017-01-01	39.425