Year	Percent
1996-01-01	5.2046700000000000
1997-01-01	2.2490400000000000
1998-01-01	3.8178400000000003
1999-01-01	5.9923000000000000
2000-01-01	4.4971000000000000
2001-01-01	4.5264100000000000
2002-01-01	4.4566500000000000
2003-01-01	5.4865400000000000
2004-01-01	4.0188800000000000
2005-01-01	3.7780500000000000
2006-01-01	5.3932500000000000
2007-01-01	6.6368899999999990
2008-01-01	5.8176600000000000
2009-01-01	5.8196600000000000
2010-01-01	4.5793599999999990
2011-01-01	4.5267200000000000
2012-01-01	5.0144400000000005
2013-01-01	6.7782700000000000
2014-01-01	6.7438699999999990
2015-01-01	3.9729300000000003
2016-01-01	3.1932600000000000