Year Cases per 100,000 1990 45.8 1991 46.73 1992 47.75 1993 48.85 1994 50.04 1995 51.33 1996 52.93 1997 54.64 1998 56.45 1999 58.39 2000 60.47 2001 61.39 2002 62.34 2003 63.33 2004 64.35 2005 65.42 2006 66.51 2007 67.65 2008 68.87 2009 70.17 2010 71.55 2011 72.08 2012 72.65 2013 73.25 2014 73.87 2015 74.53 2016 75.24