Year Percent 1995 0.78233 1996 0.09144 1997 4.73232 1998 1.14705 2000 0.49857 2001 2.19402 2002 1.32384 2003 25.20627 2004 0.07638 2005 0.07479 2006 0.62674 2008 1.68778 2009 9.28063 2010 0.25684 2011 5.17473 2012 0.32144 2013 0.11848