Year Cases per 100,000 1990 132.58 1991 136.93 1992 141.52 1993 146.28 1994 151.22 1995 156.39 1996 159.46 1997 162.66 1998 165.94 1999 169.32 2000 172.81 2001 171.41 2002 170.06 2003 168.73 2004 167.42 2005 166.13 2006 168.75 2007 171.42 2008 174.16 2009 176.95 2010 179.8 2011 182.18 2012 184.6 2013 187.05 2014 189.54 2015 192.06 2016 194.65