Year Cases per 100,000 1990 40.89 1991 41.46 1992 42.05 1993 42.64 1994 43.25 1995 43.88 1996 44.31 1997 44.74 1998 45.19 1999 45.64 2000 46.1 2001 46.52 2002 46.95 2003 47.39 2004 47.84 2005 48.3 2006 48.39 2007 48.47 2008 48.57 2009 48.66 2010 48.77 2011 48.35 2012 47.95 2013 47.55 2014 47.16 2015 46.77 2016 46.4