Year	Percent
1996-01-01	14.060800000000000
1997-01-01	8.422500000000000
1998-01-01	8.378969999999999
1999-01-01	17.115500000000000
2000-01-01	12.885400000000000
2001-01-01	15.428100000000000
2002-01-01	13.795200000000000
2003-01-01	14.954100000000000
2004-01-01	14.214700000000000
2005-01-01	12.643100000000000
2006-01-01	10.862800000000000
2007-01-01	12.456800000000000
2008-01-01	12.915900000000000
2009-01-01	12.411000000000000
2010-01-01	11.931300000000000
2011-01-01	11.273100000000000
2012-01-01	8.698500000000000
2013-01-01	13.885600000000000
2014-01-01	14.105000000000000
2015-01-01	12.549100000000000
2016-01-01	12.752300000000000