Year	Percent
2003-01-01	4.325
2004-01-01	4.900
2005-01-01	4.575
2006-01-01	4.975
2007-01-01	4.375
2008-01-01	3.975
2009-01-01	5.400
2010-01-01	5.800
2011-01-01	5.725
2012-01-01	6.200
2013-01-01	7.000
2014-01-01	7.450
2015-01-01	7.375
2016-01-01	7.200
2017-01-01	6.525