Year	Percent
1996-01-01	7.6318000000000000
1997-01-01	7.6543700000000000
1998-01-01	9.3334300000000000
1999-01-01	7.2712800000000000
2000-01-01	7.6732300000000000
2001-01-01	7.9748399999999995
2002-01-01	7.2131399999999990
2003-01-01	7.3304899999999990
2004-01-01	6.6098899999999990
2005-01-01	6.8562199999999995
2006-01-01	7.1852700000000000
2007-01-01	7.3120100000000010
2008-01-01	7.5278500000000000
2009-01-01	8.7451300000000000
2010-01-01	8.0468100000000000
2011-01-01	9.5773300000000000
2012-01-01	8.0841900000000000
2013-01-01	7.9000100000000010
2014-01-01	7.6584000000000000
2015-01-01	6.1512600000000000
2016-01-01	7.1240300000000000