Year	Percent
1996-01-01	11.0864000000000000
1997-01-01	7.5820200000000000
1998-01-01	9.9440800000000000
1999-01-01	6.9213200000000000
2000-01-01	5.6014300000000010
2001-01-01	4.7001200000000000
2002-01-01	4.9399800000000000
2003-01-01	5.6677100000000000
2004-01-01	5.4608400000000000
2005-01-01	5.0695300000000000
2006-01-01	4.7333099999999995
2007-01-01	5.8958100000000000
2008-01-01	5.3050900000000000
2009-01-01	5.1917500000000000
2010-01-01	4.4619400000000000
2011-01-01	4.3090400000000000
2012-01-01	4.7715300000000000
2013-01-01	4.7435199999999990
2014-01-01	4.2647100000000000
2015-01-01	4.1660699999999995
2016-01-01	4.1554800000000010