Year	Percent
1996-01-01	1.6271000000000000
1997-01-01	1.5246000000000000
1998-01-01	1.1662299999999999
1999-01-01	1.0228000000000000
2000-01-01	1.0730400000000000
2001-01-01	1.8366900000000002
2002-01-01	1.5340100000000000
2003-01-01	1.6780700000000002
2004-01-01	1.7795200000000000
2005-01-01	1.7400900000000001
2006-01-01	1.7203300000000000
2007-01-01	1.7097300000000000
2008-01-01	1.9298400000000002
2009-01-01	1.8153500000000000
2010-01-01	1.7927600000000000
2011-01-01	1.9030700000000000
2012-01-01	1.9273000000000000
2013-01-01	1.8819000000000000
2014-01-01	1.4999300000000000
2015-01-01	1.7273599999999998
2016-01-01	1.7960000000000000