Year	Percent
1996-01-01	1.1631000000000000
1997-01-01	1.0621800000000000
1998-01-01	1.2008700000000000
1999-01-01	1.0962600000000000
2000-01-01	0.9332330000000000
2001-01-01	0.8873010000000000
2002-01-01	1.1607800000000000
2003-01-01	1.1219000000000000
2004-01-01	0.9990190000000001
2005-01-01	0.8398200000000001
2006-01-01	0.8212219999999999
2007-01-01	0.7231310000000001
2008-01-01	0.9540480000000000
2009-01-01	1.0685799999999999
2010-01-01	0.9447850000000000
2011-01-01	0.9479610000000000
2012-01-01	0.8240209999999999
2013-01-01	0.9280799999999999
2014-01-01	0.7137630000000000
2015-01-01	0.6791040000000000
2016-01-01	0.6521070000000000