Year Cases per 100,000 1990 14.96 1991 14.93 1992 15.06 1993 15.11 1994 15 1995 15.02 1996 14.43 1997 14.16 1998 13.89 1999 13.92 2000 14.09 2001 14.19 2002 14.26 2003 14.35 2004 14.36 2005 14.5 2006 14.45 2007 14.24 2008 14.01 2009 13.86 2010 13.72 2011 13.85 2012 13.6 2013 13.66 2014 13.92 2015 13.93 2016 14.01