Year	Percent
2003-01-01	24.500
2004-01-01	24.400
2005-01-01	24.000
2006-01-01	24.700
2007-01-01	25.000
2008-01-01	25.325
2009-01-01	23.425
2010-01-01	23.975
2011-01-01	25.025
2012-01-01	24.025
2013-01-01	23.650
2014-01-01	22.775
2015-01-01	24.000
2016-01-01	24.950
2017-01-01	25.975