Year	Percent
2003-01-01	6.50
2004-01-01	7.01
2005-01-01	7.59
2006-01-01	7.52
2007-01-01	8.44
2008-01-01	7.48
2009-01-01	9.59
2010-01-01	10.10
2011-01-01	9.69
2012-01-01	9.97
2013-01-01	9.82
2014-01-01	10.07
2015-01-01	8.77
2016-01-01	8.61