Year per 100,000 people 2000 17 2001 13 2002 14 2003 14 2004 14 2005 13 2006 12 2007 11 2008 11 2009 12 2010 12 2011 11 2012 13 2013 13 2014 13 2015 13 2016 12 2017 12 2018 13 2019 12 2020 12 2021 12 2022 12