Year	Percent
2003-01-01	61.775
2004-01-01	61.925
2005-01-01	62.000
2006-01-01	62.050
2007-01-01	62.325
2008-01-01	62.500
2009-01-01	62.875
2010-01-01	62.900
2011-01-01	62.650
2012-01-01	62.950
2013-01-01	62.975
2014-01-01	62.575
2015-01-01	62.500
2016-01-01	62.350
2017-01-01	62.125