Year	Percent
1996-01-01	5.0987400000000000
1997-01-01	5.7502500000000000
1998-01-01	4.9047800000000010
1999-01-01	4.6620800000000004
2000-01-01	5.2029200000000000
2001-01-01	5.4553400000000005
2002-01-01	4.5271099999999995
2003-01-01	5.8422100000000000
2004-01-01	4.2477700000000000
2005-01-01	5.9653000000000000
2006-01-01	9.2201200000000000
2007-01-01	6.9595699999999990
2008-01-01	8.0919400000000000
2009-01-01	6.4690699999999990
2010-01-01	5.4064200000000000
2011-01-01	7.1300100000000000
2012-01-01	6.8128000000000000
2013-01-01	5.9239500000000000
2014-01-01	4.3886400000000005
2015-01-01	6.2079100000000000
2016-01-01	5.3049000000000000