Year Per 100 000 2000 0 2001 5.2 2002 7.6 2003 2.5 2004 5 2005 0 2006 2.4 2007 9.6 2008 12 2009 9.5 2010 4.7 2011 2.3 2012 4.6 2013 0 2014 16 2015 4.7 2016 0 2017 2.2 2018 0 2019 4.4 2020 4.3