Year Cases per 100,000 1990 71.23 1991 70.92 1992 71.26 1993 71.49 1994 71.96 1995 72.54 1996 72.46 1997 72.61 1998 72.56 1999 72.66 2000 72.83 2001 72.38 2002 71.92 2003 71.79 2004 71.39 2005 71.11 2006 70.5 2007 69.88 2008 69.43 2009 68.97 2010 68.32 2011 67.7 2012 66.64 2013 66.37 2014 65.91 2015 65.42 2016 65.1