Year	Percent
1996-01-01	5.1332000000000000
1997-01-01	5.4891900000000000
1998-01-01	4.4120500000000000
1999-01-01	3.4209699999999996
2000-01-01	4.9541100000000000
2001-01-01	3.6926400000000004
2002-01-01	3.3754699999999995
2003-01-01	3.4823699999999995
2004-01-01	1.7078099999999998
2005-01-01	1.5498900000000000
2006-01-01	1.6882800000000000
2007-01-01	1.1318400000000000
2008-01-01	2.0877300000000000
2009-01-01	1.4929200000000000
2010-01-01	1.0656800000000000
2011-01-01	1.4016300000000000
2012-01-01	1.5405900000000000
2013-01-01	2.1526500000000000
2014-01-01	1.5344700000000000
2015-01-01	0.9642129999999999
2016-01-01	0.8088050000000000