Year	Percent
1996-01-01	7.4913800000000000
1997-01-01	12.5825000000000000
1998-01-01	3.4405000000000000
1999-01-01	5.9569800000000010
2000-01-01	0.5775510000000000
2001-01-01	2.3399500000000000
2002-01-01	6.3242600000000000
2003-01-01	8.1468200000000000
2004-01-01	7.0883199999999995
2005-01-01	7.5336200000000000
2006-01-01	8.3853100000000000
2007-01-01	7.8340500000000000
2008-01-01	7.8403000000000000
2009-01-01	6.9644400000000000
2010-01-01	5.6670400000000000
2011-01-01	5.4013599999999995
2012-01-01	4.9741200000000000
2013-01-01	5.3761000000000000
2014-01-01	4.7457199999999995
2015-01-01	4.0138200000000000
2016-01-01	5.1149300000000000