Year	Percent
1996-01-01	5.9799200000000000
1997-01-01	4.8911900000000000
1998-01-01	2.6439999999999997
1999-01-01	3.0159700000000003
2000-01-01	6.3898000000000000
2001-01-01	4.8389300000000000
2002-01-01	5.0394100000000000
2003-01-01	5.7120100000000000
2004-01-01	5.5676000000000000
2005-01-01	4.1407700000000000
2006-01-01	4.1879200000000000
2007-01-01	4.8231600000000000
2008-01-01	2.8132500000000000
2009-01-01	4.4655700000000000
2010-01-01	3.8481199999999998
2011-01-01	4.0675400000000000
2012-01-01	3.4615400000000003
2013-01-01	3.8753400000000000
2014-01-01	3.4562100000000000
2015-01-01	6.6426899999999990
2016-01-01	4.1577100000000000