Year Percent 1995 2.985 1996 2.204 1997 3.422 1998 2.409 1999 2.051 2000 3.694 2001 4.581 2002 3.94 2003 3.983 2004 4.247 2005 2.458 2006 3.556 2007 3.595 2008 3.595 2009 3.595 2010 3.595