Year Cases per 100,000 1990 38.39 1991 38.33 1992 38.28 1993 38.24 1994 38.19 1995 38.17 1996 38.47 1997 38.8 1998 39.14 1999 39.48 2000 39.86 2001 40.47 2002 41.15 2003 41.84 2004 42.55 2005 43.31 2006 43.84 2007 44.35 2008 44.9 2009 45.46 2010 46.06 2011 46.51 2012 47.01 2013 47.51 2014 48.01 2015 48.53 2016 49.09