Year per 100,000 people 2000 33 2001 30 2002 29 2003 39 2004 34 2005 36 2006 33 2007 33 2008 31 2009 32 2010 23 2011 21 2012 21 2013 19 2014 17 2015 15 2016 13 2017 12 2018 12 2019 14 2020 15 2021 15 2022 15