Year Cases per 100,000 1990 61.96 1991 62.92 1992 63.97 1993 65.11 1994 66.35 1995 67.76 1996 68.04 1997 68.36 1998 68.69 1999 69.04 2000 69.41 2001 69.45 2002 69.5 2003 69.56 2004 69.63 2005 69.72 2006 68.77 2007 67.86 2008 67 2009 66.19 2010 65.42 2011 64.79 2012 64.2 2013 63.63 2014 63.09 2015 62.56 2016 62.07