Year per 100,000 people 2000 6.5 2001 11 2002 12 2003 11 2004 11 2005 9.7 2006 10 2007 13 2008 14 2009 6.8 2010 6.1 2011 4.7 2012 7.3 2013 5.9 2014 3.9 2015 9.2 2016 2 2017 7.1 2018 3.2 2019 3.9 2020 5.1 2021 2.6 2022 1.3