Year Cases per 100,000 1990 95.34 1991 94 1992 92.79 1993 91.66 1994 90.61 1995 89.64 1996 91.3 1997 93.08 1998 94.99 1999 97.06 2000 99.55 2001 98.28 2002 97.11 2003 96.01 2004 95 2005 94.06 2006 92.91 2007 91.86 2008 90.91 2009 90.05 2010 89.3 2011 88.12 2012 87.01 2013 85.94 2014 84.91 2015 83.93 2016 83.01