Year Percent 1995 10.21 1996 10.21 1997 10.21 1998 10.21 1999 10.21 2000 10.21 2001 11.17 2002 10.91 2003 11.29 2004 8.476 2005 9.273 2006 14.4 2007 13.67 2008 13.69 2009 12.93 2010 13.79