Year Per 100 People 1993 0.23 1994 0.26 1995 0.31 1996 0.36 1997 0.47 1998 0.71 1999 1.04 2000 1.2 2001 1.35 2002 1.66 2003 1.96 2004 2 2005 2.37 2006 2.99