Year	Percent
1996-01-01	2.0731100000000000
1997-01-01	1.9169100000000000
1998-01-01	1.8538000000000000
1999-01-01	1.6967700000000001
2000-01-01	0.7566360000000000
2001-01-01	2.4619100000000000
2002-01-01	2.5831900000000000
2003-01-01	2.2430500000000000
2004-01-01	2.6634100000000000
2005-01-01	0.8825770000000001
2006-01-01	1.1847100000000000
2007-01-01	1.1017800000000000
2008-01-01	1.1499600000000000
2009-01-01	1.0434200000000000
2010-01-01	1.0975300000000000
2011-01-01	1.0691400000000000
2012-01-01	1.2247800000000000
2013-01-01	1.2005299999999999
2014-01-01	1.0933700000000002
2015-01-01	1.1568100000000001
2016-01-01	1.3009000000000000