Year Deaths per 100,000 1990 0.4 1991 0.4 1992 0.5 1993 0.6 1994 0.7 1995 0.9 1996 1.3 1997 1.8 1998 2.6 1999 3.2 2000 3.6 2001 4.2 2002 4.8 2003 5.8 2004 6.7 2005 8 2006 9.2 2007 10.4