Year Percent 1995 9.178 1996 6.146 1997 5.06 1998 8.901 1999 4.646 2000 2.253 2001 2.203 2002 7.675 2003 6.906 2004 3.437 2005 4.04 2006 4.139 2007 4.139 2008 4.142 2009 4.131 2010 4.139