Year	Percent
1996-01-01	7.6149100000000010
1997-01-01	6.0223400000000000
1998-01-01	4.7449800000000000
1999-01-01	4.3244900000000000
2000-01-01	4.1851699999999990
2001-01-01	5.2521900000000010
2002-01-01	3.6266800000000003
2003-01-01	3.1446900000000000
2004-01-01	2.1655200000000000
2005-01-01	2.2384100000000000
2006-01-01	4.3915100000000000
2007-01-01	1.2914600000000000
2008-01-01	2.3110400000000000
2009-01-01	3.5215099999999997
2010-01-01	1.2098900000000000
2011-01-01	2.3386299999999998
2012-01-01	2.5331799999999998
2013-01-01	3.6168600000000000
2014-01-01	2.7777700000000003
2015-01-01	2.4628000000000000
2016-01-01	1.2504300000000000