Year	Percent
2005-01-01	12.750
2006-01-01	12.350
2007-01-01	10.350
2008-01-01	8.475
2009-01-01	8.025
2010-01-01	7.600
2011-01-01	6.400
2012-01-01	5.850
2013-01-01	5.700
2014-01-01	5.125
2015-01-01	4.700
2016-01-01	3.850
2017-01-01	3.400