Year Deaths per 100,000 1990 0.91 1991 0.87 1992 0.84 1993 0.81 1994 0.79 1995 0.77 1996 0.74 1997 0.7 1998 0.66 1999 0.63 2000 0.6 2001 0.56 2002 0.53 2003 0.51 2004 0.49 2005 0.47 2006 0.44 2007 0.41 2008 0.39 2009 0.38 2010 0.36 2011 0.35 2012 0.34 2013 0.33 2014 0.33 2015 0.33 2016 0.33