Year	Percent
1996-01-01	5.7708200000000000
1997-01-01	5.2219100000000000
1998-01-01	5.7727300000000000
1999-01-01	4.9477300000000000
2000-01-01	3.2598900000000000
2001-01-01	8.0065800000000000
2002-01-01	8.9852300000000000
2003-01-01	7.2056900000000000
2004-01-01	3.4650900000000000
2005-01-01	5.1462800000000000
2006-01-01	6.3953000000000000
2007-01-01	5.6196199999999990
2008-01-01	5.5631800000000000
2009-01-01	5.8645500000000000
2010-01-01	4.2561900000000000
2011-01-01	4.3611100000000000
2012-01-01	5.5473500000000000
2013-01-01	5.8455400000000000
2014-01-01	6.9329000000000000
2015-01-01	4.8658700000000000
2016-01-01	3.9091099999999996