Year	per 100,000 population
2000	10.3
2001	10.3
2002	9.6
2003	9.7
2004	10.1
2005	9.7
2006	10
2007	11
2008	12.2
2009	12.7
2010	11.6
2011	11.7
2012	10.5
2013	9.8
2014	9.9
2015	10
2016	10
2017	9.3
2018	8.8
2019	9