Year	Percent
1996-01-01	1.3650400000000000
1997-01-01	1.5139700000000000
1998-01-01	1.5571300000000000
1999-01-01	1.4985700000000002
2000-01-01	1.4344400000000000
2001-01-01	1.3255000000000000
2002-01-01	1.3469799999999998
2003-01-01	1.3185200000000001
2004-01-01	1.4689000000000000
2005-01-01	1.0180600000000000
2006-01-01	1.1656900000000000
2007-01-01	1.2607899999999999
2008-01-01	1.2959800000000000
2009-01-01	1.0761100000000001
2010-01-01	0.9386220000000000
2011-01-01	0.8511000000000000
2012-01-01	1.8943700000000000
2013-01-01	1.3563200000000000
2014-01-01	1.5512200000000000
2015-01-01	1.3479800000000000
2016-01-01	1.0411800000000000