Year Percent 1995 2.164 1996 1.621 1997 2.446 1998 2.024 1999 2.602 2000 1.785 2001 2.794 2002 2.441 2003 10.74 2004 5.969 2005 7.41 2006 7.067 2007 8.474 2008 12.66 2009 12.48 2010 9.111