Year	Percent
1996-01-01	13.6065000000000000
1997-01-01	7.1338300000000010
1998-01-01	7.7152199999999995
1999-01-01	8.6154800000000000
2000-01-01	5.9199800000000010
2001-01-01	4.2254200000000000
2002-01-01	9.9601899999999990
2003-01-01	7.0562500000000000
2004-01-01	7.9967100000000000
2005-01-01	5.5927100000000000
2006-01-01	7.9737100000000005
2007-01-01	11.4840000000000020
2008-01-01	8.1105600000000010
2009-01-01	6.9763899999999990
2010-01-01	6.9684000000000000
2011-01-01	8.4187800000000000
2012-01-01	7.8859000000000000
2013-01-01	6.1485400000000010
2014-01-01	5.8420400000000000
2015-01-01	4.7567500000000000
2016-01-01	6.2364500000000000