Year	per 100,000 population
2000	13
2001	12.2
2002	11.2
2003	11
2004	10.1
2005	10.2
2006	10.6
2007	10.4
2008	11.3
2009	10.2
2010	10.1
2011	10
2012	8.9
2013	8.6
2014	9.8
2015	9.6
2016	9.2
2017	8.8
2018	8.6
2019	8.4