Year	Percent
1991-01-01	0.8863540000000001
1992-01-01	0.9442790000000001
1993-01-01	1.0045400000000000
1994-01-01	0.9782200000000001
1995-01-01	1.0049299999999999
1996-01-01	0.9502280000000001
1997-01-01	0.8801049999999999
1998-01-01	0.9346830000000000
1999-01-01	1.1150799999999998
2000-01-01	1.2227299999999999
2001-01-01	1.3593200000000000
2002-01-01	1.5160000000000000
2003-01-01	1.3443000000000000
2004-01-01	1.4230100000000000
2005-01-01	1.1048100000000000
2006-01-01	1.1088700000000000
2007-01-01	1.0965799999999999
2008-01-01	1.0810200000000000
2009-01-01	1.0725000000000000
2010-01-01	1.0064799999999998
2011-01-01	0.9498420000000000
2012-01-01	0.9416780000000000
2013-01-01	0.9026719999999999
2014-01-01	0.8918190000000000
2015-01-01	0.8560820000000000