Year	Percent
1996-01-01	1.6043300000000000
1997-01-01	1.5738000000000000
1998-01-01	1.3612100000000000
1999-01-01	1.4534900000000000
2000-01-01	1.4442100000000000
2001-01-01	1.4144700000000001
2002-01-01	1.4133700000000000
2003-01-01	1.4644900000000000
2004-01-01	1.3863200000000000
2005-01-01	1.3418200000000000
2006-01-01	1.3962000000000000
2007-01-01	1.2548100000000000
2008-01-01	1.3373200000000000
2009-01-01	1.1069799999999999
2010-01-01	1.2079600000000001
2011-01-01	1.2836200000000000
2012-01-01	1.2797800000000000
2013-01-01	1.3447600000000000
2014-01-01	1.3265200000000001
2015-01-01	1.5387200000000000
2016-01-01	1.2671100000000000