Year Cases per 100,000 1990 83.33 1991 85.15 1992 87.07 1993 89.07 1994 91.14 1995 93.32 1996 95.85 1997 98.55 1998 101.41 1999 104.43 2000 107.66 2001 108.84 2002 110.11 2003 111.44 2004 112.84 2005 114.34 2006 112.07 2007 109.84 2008 107.69 2009 105.61 2010 103.63 2011 103.77 2012 103.96 2013 104.15 2014 104.34 2015 104.54 2016 104.79