Year Cases per 100,000 1990 48.25 1991 49.02 1992 49.85 1993 50.74 1994 51.69 1995 52.71 1996 53.17 1997 53.65 1998 54.16 1999 54.71 2000 55.29 2001 55.43 2002 55.61 2003 55.82 2004 56.08 2005 56.39 2006 56.87 2007 57.36 2008 57.87 2009 58.4 2010 58.96 2011 59.81 2012 60.69 2013 61.59 2014 62.51 2015 63.44 2016 64.4