Year	Percent
2003-01-01	4.400
2004-01-01	4.700
2005-01-01	4.775
2006-01-01	5.175
2007-01-01	4.675
2008-01-01	4.250
2009-01-01	5.675
2010-01-01	6.050
2011-01-01	5.800
2012-01-01	6.475
2013-01-01	7.500
2014-01-01	8.025
2015-01-01	7.975
2016-01-01	8.100
2017-01-01	7.275