Year	per 100,000 population
2000	12.6
2001	11.4
2002	10.1
2003	9.7
2004	9.3
2005	8.9
2006	9.2
2007	9
2008	8.8
2009	8.9
2010	10
2011	11.2
2012	10
2013	8.4
2014	8.8
2015	9.8
2016	9.3
2017	7.8
2018	8.3
2019	7.9