Year	Percent
1996-01-01	1.6550599999999998
1997-01-01	1.5940800000000000
1998-01-01	1.3660800000000000
1999-01-01	1.2690500000000000
2000-01-01	1.1722200000000000
2001-01-01	1.0957100000000000
2002-01-01	1.2222700000000000
2003-01-01	1.0220000000000000
2004-01-01	1.0564400000000000
2005-01-01	0.9114200000000001
2006-01-01	1.0425300000000000
2007-01-01	0.9935680000000000
2008-01-01	0.9310860000000001
2009-01-01	1.1154700000000002
2010-01-01	0.9368600000000000
2011-01-01	0.7917790000000000
2012-01-01	0.8120080000000000
2013-01-01	0.8753559999999999
2014-01-01	0.9516969999999999
2015-01-01	0.7245280000000000
2016-01-01	0.8077900000000000