Year	Percent
2003-01-01	3.200
2004-01-01	4.400
2005-01-01	3.900
2006-01-01	4.100
2007-01-01	3.375
2008-01-01	4.150
2009-01-01	4.200
2010-01-01	3.925
2011-01-01	4.275
2012-01-01	4.475
2013-01-01	5.325
2014-01-01	4.875
2015-01-01	5.850
2016-01-01	5.325
2017-01-01	4.900