Year	Percent
1996-01-01	12.109400000000000
1997-01-01	16.490100000000000
1998-01-01	14.859100000000000
1999-01-01	13.181400000000000
2000-01-01	14.238900000000000
2001-01-01	13.536800000000000
2002-01-01	9.309180000000000
2003-01-01	9.888890000000000
2004-01-01	9.911290000000000
2005-01-01	11.216700000000000
2006-01-01	8.270830000000000
2007-01-01	9.868810000000000
2008-01-01	10.978400000000000
2009-01-01	9.646250000000000
2010-01-01	8.785490000000000
2011-01-01	9.869069999999999
2012-01-01	10.084200000000000
2013-01-01	10.525600000000000
2014-01-01	9.358970000000000
2015-01-01	9.349860000000001
2016-01-01	8.756500000000000