Year per 100,000 people 2000 7.1 2001 8.6 2002 7.9 2003 8.7 2004 7.9 2005 7.6 2006 8.2 2007 5.4 2008 8 2009 7.9 2010 8.7 2011 6.6 2012 5.9 2013 5.8 2014 6.4 2015 6.6 2016 7.2 2017 7.3 2018 7.3 2019 6.1 2020 4.2 2021 4.6 2022 4.6