Year Cases per 100,000 1990 32.85 1991 33.27 1992 33.71 1993 34.16 1994 34.62 1995 35.1 1996 36.61 1997 38.21 1998 39.89 1999 41.65 2000 43.52 2001 48.02 2002 53.08 2003 58.76 2004 65.12 2005 72.3 2006 75.03 2007 77.84 2008 80.81 2009 83.92 2010 87.2 2011 86.09 2012 85.04 2013 84 2014 82.99 2015 81.98 2016 81.05