Year Cases per 100,000 1990 185.3 1991 182.06 1992 177.39 1993 173.61 1994 170.18 1995 168.81 1996 167.48 1997 167.89 1998 167.48 1999 168.35 2000 166.64 2001 161.13 2002 159.16 2003 156.9 2004 154.48 2005 148.25 2006 138.44 2007 132.29 2008 126.92 2009 125.48 2010 126.37 2011 121.9 2012 117.5 2013 118.1 2014 119.25 2015 120.19 2016 121.08