Year Percent 1995-01-01 160 1996-01-01 48.00 1997-01-01 28.00 1998-01-01 60.00 1999-01-01 55.00 2000-01-01 25.00 2001-01-01 25.00 2002-01-01 21.00 2003-01-01 16.00 2004-01-01 13.00 2005-01-01 12.00 2006-01-01 11.00 2007-01-01 10.00 2008-01-01 13.00 2009-01-01 8.75 2010-01-01 7.75 2011-01-01 5.25 2012-01-01 5.50 2013-01-01 5.50 2014-01-01 17.00 2015-01-01 11.00 2016-01-01 10.00