Year Per 100 000 2000 5.7 2001 5.6 2002 5.4 2003 5.3 2004 10 2005 0 2006 0 2007 0 2008 1.4 2009 2.8 2010 4.1 2011 0 2012 0 2013 4 2014 0 2015 0 2016 0 2017 1.9 2018 3.9 2019 3.9 2020 3.9