Year	Percent
2006-01-01	76.150
2007-01-01	76.050
2008-01-01	75.050
2009-01-01	73.425
2010-01-01	71.750
2011-01-01	70.375
2012-01-01	69.700
2013-01-01	68.375
2014-01-01	68.250
2015-01-01	67.000
2016-01-01	65.875
2017-01-01	64.775