Year	Percent
1996-01-01	1.9799000000000000
1997-01-01	1.9391000000000000
1998-01-01	1.2167000000000000
1999-01-01	2.0250400000000000
2000-01-01	2.1213900000000003
2001-01-01	1.8926599999999998
2002-01-01	2.3503800000000000
2003-01-01	1.3460800000000000
2004-01-01	1.8922400000000001
2005-01-01	1.5639800000000000
2006-01-01	1.7654500000000000
2007-01-01	1.9970400000000001
2008-01-01	2.1859900000000003
2009-01-01	1.8475300000000000
2010-01-01	2.1021600000000000
2011-01-01	2.2216400000000003
2012-01-01	2.0297700000000000
2013-01-01	2.0711500000000000
2014-01-01	2.0173500000000000
2015-01-01	1.7903099999999998
2016-01-01	2.1085300000000000