Year per 100,000 people 2000 23 2001 22 2002 18 2003 16 2004 19 2005 18 2006 18 2007 17 2008 17 2009 16 2010 16 2011 16 2012 16 2013 16 2014 15 2015 17 2016 16 2017 17 2018 18 2019 18 2020 14 2021 16 2022 17