Year Cases per 100,000 2000 0 2001 0 2002 223 2003 0 2004 0 2005 0 2006 0 2007 0 2008 0 2009 0 2010 0 2011 62 2012 0 2013 0 2014 0 2015 0 2017 0 2018 124 2019 0 2020 62