Year	Percent
2003-01-01	12.6
2004-01-01	16.1
2005-01-01	45.6
2006-01-01	82
2007-01-01	61.6
2008-01-01	44.2
2009-01-01	79.9
2010-01-01	81.2
2011-01-01	84.4
2012-01-01	86.3
2013-01-01	89.8
2014-01-01	69.9