Year	Percent
1996-01-01	1.8839200000000000
1997-01-01	1.3588200000000001
1998-01-01	1.5144700000000000
1999-01-01	1.6928700000000000
2000-01-01	1.6432300000000000
2001-01-01	1.3995700000000000
2002-01-01	1.7035400000000000
2003-01-01	1.9563800000000000
2004-01-01	1.7468200000000000
2005-01-01	1.6354500000000000
2006-01-01	1.0992600000000001
2007-01-01	1.5785000000000000
2008-01-01	1.2883100000000000
2009-01-01	1.0629700000000000
2010-01-01	1.4030600000000000
2011-01-01	1.3937200000000000
2012-01-01	1.3874400000000000
2013-01-01	1.1409100000000000
2014-01-01	1.4471200000000000
2015-01-01	1.5671700000000002
2016-01-01	1.3504300000000000