Year	Percent
2003-01-01	3.100
2004-01-01	2.925
2005-01-01	2.475
2006-01-01	3.050
2007-01-01	2.275
2008-01-01	2.600
2009-01-01	5.675
2010-01-01	6.750
2011-01-01	6.175
2012-01-01	5.675
2013-01-01	5.075
2014-01-01	4.775
2015-01-01	4.025
2016-01-01	3.050
2017-01-01	2.725