Year	Percent
2000-01-01	65.625
2001-01-01	68.650
2002-01-01	72.225
2003-01-01	67.625
2004-01-01	70.475
2005-01-01	68.925
2006-01-01	69.650
2007-01-01	67.900
2008-01-01	62.925
2009-01-01	65.900
2010-01-01	65.750
2011-01-01	63.500
2012-01-01	62.775
2013-01-01	61.800
2014-01-01	63.000
2015-01-01	62.325
2016-01-01	59.625
2017-01-01	57.575