Year	per 100,000 population
2000	11.8
2001	9.6
2002	10.5
2003	8.4
2004	8.3
2005	6.8
2006	10.8
2007	4.9
2008	4.5
2009	5.7
2010	2.6
2011	4.3
2012	3.4
2013	4.9
2014	1.8
2015	4.8
2016	6.6
2017	5.5
2018	7
2019	2