Year	per 100,000 population
2000	9.8
2001	9.5
2002	9.5
2003	9.2
2004	9
2005	8.9
2006	8.9
2007	9
2008	9.4
2009	9.4
2010	9.5
2011	9.7
2012	9.7
2013	9.9
2014	10
2015	10.5
2016	10.4
2017	9.8
2018	9.3
2019	9.4