Year	Percent
1991-01-01	1.0705600000000000
1992-01-01	1.1982500000000000
1993-01-01	1.1929100000000001
1994-01-01	1.2146800000000000
1995-01-01	1.1569100000000000
1996-01-01	0.9386850000000000
1997-01-01	0.8844160000000000
1998-01-01	0.8481310000000000
1999-01-01	0.7838420000000000
2000-01-01	0.8027080000000000
2001-01-01	0.8797180000000000
2002-01-01	1.0964600000000000
2003-01-01	1.1547399999999999
2004-01-01	1.0629400000000000
2005-01-01	0.9273319999999999
2006-01-01	0.8641830000000000
2007-01-01	0.8074640000000001
2008-01-01	0.8403600000000000
2009-01-01	0.9378190000000001
2010-01-01	0.8991040000000001
2011-01-01	0.8710230000000000
2012-01-01	0.9361000000000000
2013-01-01	0.9617160000000000
2014-01-01	0.9377549999999999
2015-01-01	0.9136540000000001
2016-01-01	0.8811660000000000