Year	Percent
2000-01-01	10.1
2001-01-01	10.1
2002-01-01	8.3
2003-01-01	8.3
2004-01-01	8.1
2005-01-01	8.5
2006-01-01	8.4
2007-01-01	8.4
2008-01-01	8.4
2009-01-01	8.3
2010-01-01	8.2