Year Percent 1995 8.024 1996 9.287 1997 9.99 1998 10.3 1999 11.07 2000 10.8 2001 11.39 2002 11.18 2003 10.89 2004 10.32 2005 11.67 2006 11.21 2007 14.48 2008 13.18 2009 14.93 2010 13.87