Year	Percent
1996-01-01	8.8336600000000000
1997-01-01	7.9690800000000000
1998-01-01	6.6458300000000000
1999-01-01	6.7731600000000010
2000-01-01	7.9287399999999995
2001-01-01	7.3429400000000000
2002-01-01	7.3584500000000000
2003-01-01	6.9743600000000010
2004-01-01	6.8242400000000000
2005-01-01	6.8339899999999990
2006-01-01	5.8610100000000000
2007-01-01	6.9067300000000005
2008-01-01	6.6843699999999995
2009-01-01	6.8896300000000000
2010-01-01	7.1795899999999990
2011-01-01	7.1986000000000000
2012-01-01	6.7675899999999990
2013-01-01	6.7232899999999995
2014-01-01	6.4147200000000000
2015-01-01	5.9375700000000000
2016-01-01	5.8037500000000000