Year per 100,000 people 2000 33 2001 30 2002 30 2003 30 2004 26 2005 24 2006 24 2007 24 2008 22 2009 23 2010 21 2011 24 2012 21 2013 21 2014 19 2015 19 2016 18 2017 17 2018 16 2019 15 2020 9.4 2021 10 2022 12