Year	Percent
2005-01-01	64.175
2006-01-01	62.900
2007-01-01	62.125
2008-01-01	61.400
2009-01-01	60.000
2010-01-01	59.025
2011-01-01	57.425
2012-01-01	55.400
2013-01-01	53.475
2014-01-01	51.575
2015-01-01	50.000
2016-01-01	48.000
2017-01-01	46.225