Year Per 100 000 2000 4.2 2001 2.6 2002 3 2003 3.6 2004 2.6 2005 2.6 2006 2 2007 1.8 2008 1.5 2009 1.7 2010 1.8 2011 1.3 2012 0.99 2013 1 2014 0.75 2015 0.76 2016 0.79 2017 0.8 2018 0.98 2019 0.94 2020 0.79