Year	Percent
1996-01-01	68.794300000000000
1997-01-01	54.732500000000000
1998-01-01	54.732500000000000
1999-01-01	54.732500000000000
2000-01-01	79.057600000000000
2001-01-01	67.720600000000000
2002-01-01	73.912300000000000
2003-01-01	81.654700000000000
2004-01-01	69.334800000000000
2005-01-01	70.593500000000000
2006-01-01	70.483600000000000
2007-01-01	47.655800000000000
2008-01-01	53.419200000000000
2009-01-01	65.096600000000000
2010-01-01	63.199700000000000
2011-01-01	49.503400000000000
2012-01-01	46.464800000000000
2013-01-01	46.250900000000000
2014-01-01	38.478000000000000
2015-01-01	52.681999999999995
2016-01-01	53.162600000000000