Year	Percent
2000-01-01	12.575
2001-01-01	12.550
2002-01-01	12.850
2003-01-01	14.075
2004-01-01	13.900
2005-01-01	13.550
2006-01-01	13.075
2007-01-01	12.575
2008-01-01	11.525
2009-01-01	11.925
2010-01-01	12.700
2011-01-01	13.000
2012-01-01	13.175
2013-01-01	13.425
2014-01-01	13.225
2015-01-01	13.475
2016-01-01	13.650
2017-01-01	14.375