Year	Percent
1996-01-01	5.2758500000000000
1997-01-01	4.9674200000000000
1998-01-01	5.2148400000000010
1999-01-01	4.4976600000000000
2000-01-01	5.4864300000000000
2001-01-01	5.5098600000000000
2002-01-01	6.0108200000000000
2003-01-01	6.5023200000000000
2004-01-01	5.5920400000000000
2005-01-01	5.3114900000000000
2006-01-01	5.4325300000000000
2007-01-01	6.4690300000000000
2008-01-01	5.9171100000000000
2009-01-01	6.3056900000000000
2010-01-01	6.6132000000000000
2011-01-01	4.0583100000000000
2012-01-01	4.9592199999999990
2013-01-01	4.5927200000000000
2014-01-01	4.9484300000000000
2015-01-01	1.3223000000000000
2016-01-01	7.6355699999999995