Year Cases per 100,000 1990 50.14 1991 50.6 1992 51.09 1993 51.59 1994 52.09 1995 52.61 1996 53.49 1997 54.4 1998 55.33 1999 56.29 2000 57.29 2001 57.54 2002 57.8 2003 58.07 2004 58.34 2005 58.63 2006 59.22 2007 59.81 2008 60.42 2009 61.04 2010 61.68 2011 62.48 2012 63.31 2013 64.15 2014 65 2015 65.87 2016 66.77