Year	Percent
2000-01-01	62.425
2001-01-01	62.250
2002-01-01	64.225
2003-01-01	62.225
2004-01-01	62.125
2005-01-01	60.150
2006-01-01	57.975
2007-01-01	60.100
2008-01-01	62.250
2009-01-01	58.950
2010-01-01	56.850
2011-01-01	56.625
2012-01-01	57.825
2013-01-01	58.225
2014-01-01	55.800
2015-01-01	56.625
2016-01-01	55.175
2017-01-01	53.950