Year	Percent
1996-01-01	21.633700000000000
1997-01-01	16.398300000000000
1998-01-01	8.436530000000000
1999-01-01	13.657500000000000
2000-01-01	13.647500000000000
2001-01-01	14.050800000000000
2002-01-01	6.792240000000000
2003-01-01	8.081350000000000
2004-01-01	9.000520000000000
2005-01-01	14.804100000000000
2006-01-01	27.376500000000000
2007-01-01	18.497300000000000
2008-01-01	10.023900000000000
2009-01-01	11.550100000000000
2010-01-01	14.615500000000000
2011-01-01	10.222000000000001
2012-01-01	12.800600000000000
2013-01-01	11.538800000000000
2014-01-01	13.007000000000000
2015-01-01	12.313400000000000
2016-01-01	9.527840000000000