Year	Percent
2005-01-01	43.925
2006-01-01	43.900
2007-01-01	44.375
2008-01-01	44.400
2009-01-01	43.525
2010-01-01	42.250
2011-01-01	41.875
2012-01-01	41.450
2013-01-01	41.000
2014-01-01	40.125
2015-01-01	39.725
2016-01-01	39.650
2017-01-01	39.775