Year	Percent
2005-01-01	29.375
2006-01-01	29.025
2007-01-01	28.950
2008-01-01	28.750
2009-01-01	28.700
2010-01-01	28.400
2011-01-01	27.525
2012-01-01	27.350
2013-01-01	27.025
2014-01-01	26.800
2015-01-01	26.925
2016-01-01	26.300
2017-01-01	26.000