Year	Percent
1996-01-01	1.6559099999999998
1997-01-01	1.4284299999999999
1998-01-01	1.0324100000000000
1999-01-01	0.9604580000000000
2000-01-01	0.9973960000000000
2001-01-01	1.0615200000000000
2002-01-01	1.1117100000000000
2003-01-01	0.9367670000000000
2004-01-01	0.8142500000000000
2005-01-01	1.0230900000000000
2006-01-01	0.8314570000000000
2007-01-01	0.9388970000000000
2008-01-01	1.2565200000000000
2009-01-01	1.6103700000000000
2010-01-01	1.3725399999999999
2011-01-01	2.1931599999999998
2012-01-01	1.3333600000000000
2013-01-01	1.1424400000000000
2014-01-01	1.1303800000000000
2015-01-01	1.0676200000000000
2016-01-01	1.1163500000000000