Year	Percent
2005-01-01	33.075
2006-01-01	31.500
2007-01-01	30.650
2008-01-01	30.300
2009-01-01	29.625
2010-01-01	29.100
2011-01-01	28.100
2012-01-01	28.150
2013-01-01	27.375
2014-01-01	27.125
2015-01-01	26.950
2016-01-01	26.375
2017-01-01	26.025