Year Cases per 100,000 1990 56.51 1991 57.58 1992 58.67 1993 59.78 1994 60.92 1995 62.1 1996 62.75 1997 63.42 1998 64.1 1999 64.79 2000 65.5 2001 66.14 2002 66.79 2003 67.46 2004 68.13 2005 68.82 2006 69.08 2007 69.33 2008 69.6 2009 69.87 2010 70.16 2011 70.21 2012 70.27 2013 70.33 2014 70.39 2015 70.45 2016 70.52