Year	Percent
2005-01-01	6.425
2006-01-01	6.275
2007-01-01	6.225
2008-01-01	6.500
2009-01-01	6.800
2010-01-01	6.800
2011-01-01	6.800
2012-01-01	6.850
2013-01-01	7.100
2014-01-01	7.375
2015-01-01	7.525
2016-01-01	8.050
2017-01-01	8.075