Year Deaths per 100,000 1990 0.6 1991 0.9 1992 1.3 1993 1.8 1994 2.5 1995 3.1 1996 3.8 1997 4.5 1998 5 1999 5.1 2000 5.3 2001 5.5 2002 6 2003 6.2 2004 5.9 2005 5.9 2006 5.7 2007 5.7