Year Percent 1990 36.21 1991 36.21 1992 36.21 1993 36.21 1994 36.21 1995 36.21 1996 36.21 1997 36.21 1998 36.21 1999 36.21 2000 36.21 2001 36.21 2002 36.21 2003 36.21 2004 36.21 2005 36.21 2006 36.21 2007 36.21 2008 36.21 2009 36.21 2010 36.21 2011 36.21 2012 36.21 2013 36.21 2014 36.21 2015 36.21