Year	Percent
2005-01-01	24.900
2006-01-01	24.600
2007-01-01	24.200
2008-01-01	24.500
2009-01-01	24.800
2010-01-01	25.650
2011-01-01	25.300
2012-01-01	25.500
2013-01-01	25.825
2014-01-01	25.850
2015-01-01	25.775
2016-01-01	25.500
2017-01-01	25.550