Year	Percent
2005-01-01	46.150
2006-01-01	45.375
2007-01-01	44.800
2008-01-01	44.150
2009-01-01	43.750
2010-01-01	43.500
2011-01-01	43.050
2012-01-01	42.425
2013-01-01	42.125
2014-01-01	41.950
2015-01-01	41.825
2016-01-01	41.350
2017-01-01	41.150