Year Cases per 100,000 1990 46.52 1991 47.33 1992 48.19 1993 49.07 1994 49.99 1995 50.94 1996 51.59 1997 52.27 1998 52.96 1999 53.67 2000 54.41 2001 55.17 2002 55.96 2003 56.79 2004 57.64 2005 58.55 2006 59.4 2007 60.26 2008 61.17 2009 62.11 2010 63.09 2011 62.98 2012 62.91 2013 62.83 2014 62.77 2015 62.71 2016 62.66