Year	Percent
1996-01-01	1.7510200000000000
1997-01-01	1.7209999999999999
1998-01-01	1.6744500000000000
1999-01-01	1.7043200000000000
2000-01-01	1.5478299999999998
2001-01-01	2.0470900000000003
2002-01-01	1.9303299999999999
2003-01-01	2.8314700000000000
2004-01-01	2.3032200000000000
2005-01-01	3.0763200000000000
2006-01-01	2.7754600000000000
2007-01-01	2.6237500000000000
2008-01-01	2.4933500000000000
2009-01-01	1.5966500000000000
2010-01-01	1.4803500000000000
2011-01-01	1.4803500000000000
2012-01-01	1.4803500000000000
2013-01-01	1.2988899999999999
2014-01-01	1.3153400000000000