Year	Percent
2003-01-01	5.950
2004-01-01	6.500
2005-01-01	6.175
2006-01-01	5.250
2007-01-01	5.350
2008-01-01	5.725
2009-01-01	7.225
2010-01-01	7.300
2011-01-01	7.950
2012-01-01	8.400
2013-01-01	7.775
2014-01-01	6.325
2015-01-01	5.475
2016-01-01	4.700
2017-01-01	5.825