Year	Percent
1996-01-01	1.4377799999999998
1997-01-01	1.3402600000000000
1998-01-01	1.3974400000000000
1999-01-01	1.3130500000000000
2000-01-01	1.3108899999999999
2001-01-01	1.1869500000000000
2002-01-01	1.2581000000000000
2003-01-01	1.2679000000000000
2004-01-01	1.0979100000000000
2005-01-01	0.9366389999999999
2006-01-01	1.0532400000000000
2007-01-01	0.9016569999999999
2008-01-01	0.7353160000000000
2009-01-01	0.7853420000000000
2010-01-01	0.7936800000000000
2011-01-01	0.7899609999999999
2012-01-01	0.7714060000000000
2013-01-01	0.8310489999999999
2014-01-01	0.8282000000000000
2015-01-01	0.9204209999999999
2016-01-01	0.9040110000000000