Year Percent 1990 88.41 1991 88.41 1992 88.41 1993 88.41 1994 88.41 1995 88.41 1996 88.41 1997 88.41 1998 88.41 1999 88.41 2000 88.41 2001 88.41 2002 88.41 2003 88.41 2004 88.41 2005 88.41 2006 88.41 2007 88.41 2008 88.41 2009 88.41 2010 88.41 2011 88.41 2012 88.41 2013 88.41 2014 88.41 2015 88.4