Year	Percent
1996-01-01	2.8513900000000003
1997-01-01	2.7259599999999997
1998-01-01	2.8393700000000000
1999-01-01	2.3331900000000000
2000-01-01	2.4620700000000000
2001-01-01	2.4626099999999997
2002-01-01	2.5107700000000000
2003-01-01	2.7350200000000000
2004-01-01	2.4790400000000004
2005-01-01	2.5124500000000000
2006-01-01	2.5543700000000000
2007-01-01	2.8232700000000000
2008-01-01	3.6439400000000000
2009-01-01	3.4764300000000000
2010-01-01	2.8823400000000000
2011-01-01	2.7522400000000000
2012-01-01	4.6690700000000000
2013-01-01	2.4810300000000000
2014-01-01	2.7409300000000000
2015-01-01	2.4487300000000000
2016-01-01	2.3459700000000000