Year	Percent
2003-01-01	43.950
2004-01-01	43.600
2005-01-01	43.250
2006-01-01	43.000
2007-01-01	42.475
2008-01-01	42.150
2009-01-01	41.625
2010-01-01	41.550
2011-01-01	41.650
2012-01-01	41.375
2013-01-01	41.125
2014-01-01	41.275
2015-01-01	41.350
2016-01-01	41.475
2017-01-01	41.775