Year Cases per 100,000 1990 50.93 1991 51.41 1992 51.92 1993 52.44 1994 52.99 1995 53.56 1996 53.58 1997 53.61 1998 53.64 1999 53.67 2000 53.72 2001 54.19 2002 54.68 2003 55.19 2004 55.71 2005 56.26 2006 56.88 2007 57.51 2008 58.17 2009 58.86 2010 59.57 2011 59.65 2012 59.74 2013 59.84 2014 59.93 2015 60.04 2016 60.15