Year Deaths per 100,000 1990 0 1991 0 1992 0 1993 0 1994 0 1995 0 1996 0.1 1997 0.1 1998 0.1 1999 0.3 2000 0.4 2001 0.5 2002 0.5 2003 0.5 2004 0.5 2005 0.4 2006 0.4 2007 0.4