Year Cases per 100,000 1990 10.29 1991 10.32 1992 10.35 1993 10.38 1994 10.41 1995 10.44 1996 10.5 1997 10.57 1998 10.63 1999 10.7 2000 10.77 2001 10.86 2002 10.95 2003 11.05 2004 11.15 2005 11.25 2006 11.37 2007 11.49 2008 11.62 2009 11.75 2010 11.89 2011 11.99 2012 12.09 2013 12.2 2014 12.31 2015 12.42 2016 12.53