Year per 100,000 people 2000 7.5 2001 8.2 2002 7.3 2003 7.4 2004 7.3 2005 8 2006 7.8 2007 6.7 2008 6.8 2009 6.7 2010 5.8 2011 5.4 2012 5.1 2013 5.1 2014 5.4 2015 5.7 2016 5.4 2017 6.7 2018 5 2019 5.5 2020 4.6 2021 4.2 2022 3.8