Year Deaths per 100,000 1990 1.08 1991 3.27 1992 1.18 1993 1.15 1994 1.06 1995 1.02 1996 0.96 1997 0.92 1998 0.88 1999 0.84 2000 0.8 2001 0.79 2002 0.77 2003 0.75 2004 0.72 2005 0.67 2006 0.64 2007 0.64 2008 0.62 2009 0.59 2010 0.58 2011 0.56 2012 0.55 2013 0.54 2014 0.53 2015 0.52 2016 0.51