Year Deaths per 100,000 1990 0.76 1991 0.7 1992 0.65 1993 0.6 1994 0.55 1995 0.53 1996 0.52 1997 0.52 1998 0.52 1999 0.52 2000 0.53 2001 0.51 2002 0.5 2003 0.46 2004 0.45 2005 0.44 2006 0.43 2007 0.4 2008 0.38 2009 0.36 2010 0.35 2011 0.34 2012 0.33 2013 0.32 2014 0.32 2015 0.32 2016 0.34