Year	Percent
2000-01-01	66.000
2001-01-01	66.075
2002-01-01	65.850
2003-01-01	66.025
2004-01-01	66.075
2005-01-01	66.000
2006-01-01	65.950
2007-01-01	65.950
2008-01-01	65.725
2009-01-01	63.450
2010-01-01	63.100
2011-01-01	62.850
2012-01-01	63.150
2013-01-01	63.300
2014-01-01	64.250
2015-01-01	64.825
2016-01-01	65.225
2017-01-01	65.200