Year	Percent
2003-01-01	65.175
2004-01-01	63.950
2005-01-01	62.625
2006-01-01	62.400
2007-01-01	62.425
2008-01-01	62.750
2009-01-01	61.500
2010-01-01	60.525
2011-01-01	58.775
2012-01-01	55.750
2013-01-01	54.000
2014-01-01	51.500
2015-01-01	49.725
2016-01-01	48.625
2017-01-01	47.025