Year	Percent
1996-01-01	5.7522900000000000
1997-01-01	4.5345600000000000
1998-01-01	4.6697600000000000
1999-01-01	4.0666600000000000
2000-01-01	4.2914800000000000
2001-01-01	4.4094300000000000
2002-01-01	5.0316800000000010
2003-01-01	4.7436300000000005
2004-01-01	4.5321700000000000
2005-01-01	4.3216600000000000
2006-01-01	4.4073100000000000
2007-01-01	4.3101600000000000
2008-01-01	4.2467100000000000
2009-01-01	5.3330400000000004
2010-01-01	4.5681699999999990
2011-01-01	5.4814500000000000
2012-01-01	5.7693900000000005
2013-01-01	5.3448699999999990
2014-01-01	5.3770100000000000
2015-01-01	4.7619800000000000
2016-01-01	4.2595300000000010