Year	Percent
2001-01-01	5.80
2002-01-01	6.22
2003-01-01	6.83
2004-01-01	6.44
2005-01-01	6.58
2006-01-01	6.70
2007-01-01	6.81
2008-01-01	6.22
2009-01-01	5.61
2010-01-01	6.41
2011-01-01	5.98
2012-01-01	6.63
2013-01-01	6.98
2014-01-01	7.22