Year	Percent
2003-01-01	3.700
2004-01-01	5.100
2005-01-01	4.500
2006-01-01	4.700
2007-01-01	4.075
2008-01-01	5.050
2009-01-01	5.150
2010-01-01	4.400
2011-01-01	4.950
2012-01-01	5.175
2013-01-01	5.900
2014-01-01	5.875
2015-01-01	6.700
2016-01-01	6.275
2017-01-01	5.525