Year	Percent
1996-01-01	11.329700000000000
1997-01-01	9.025010000000000
1998-01-01	10.939200000000000
1999-01-01	10.680300000000000
2000-01-01	12.736700000000000
2001-01-01	9.357230000000000
2002-01-01	7.279460000000000
2003-01-01	7.939830000000001
2004-01-01	8.092390000000000
2005-01-01	6.357419999999999
2006-01-01	4.930050000000000
2007-01-01	7.106020000000000
2008-01-01	8.662860000000000
2009-01-01	9.573610000000000
2010-01-01	6.622610000000001
2011-01-01	6.976690000000000
2012-01-01	4.804480000000000
2013-01-01	4.495090000000000
2014-01-01	5.305610000000000
2015-01-01	4.817600000000000
2016-01-01	6.119640000000000