Year Per 100 000 2000 1.3 2001 2.5 2002 2.1 2003 3.7 2004 7.9 2005 4.1 2006 2.1 2007 6.6 2008 1.2 2009 0.82 2010 2.4 2011 0 2012 1.6 2013 1.6 2014 2 2015 0 2016 1.2 2017 0 2018 0.4 2019 0 2020 2.4