Year	per 100,000 population
2000	17.9
2001	16.4
2002	14.4
2003	12.3
2004	11.5
2005	10.5
2006	9.4
2007	9.7
2008	7.4
2009	9.9
2010	6.5
2011	6.5
2012	6.4
2013	8.3
2014	6.5
2015	6.5
2016	6.2
2017	4.8
2018	6.7
2019	4.1