Year	per 100,000 population
2000	12.5
2001	13.5
2002	14.1
2003	14.3
2004	14.3
2005	15.1
2006	15.1
2007	13.2
2008	11.4
2009	9.4
2010	8.5
2011	7.6
2012	7.1
2013	7.1
2014	6.8
2015	6.3
2016	6.2
2017	5.8
2018	5.7
2019	5.7