Year	per 100,000 population
2000	8.8
2001	8.9
2002	9.1
2003	9.1
2004	9.2
2005	9
2006	9.2
2007	9.1
2008	9
2009	8.8
2010	8.8
2011	8.7
2012	8.8
2013	8.9
2014	8.9
2015	9
2016	9.1
2017	9.1
2018	8.9
2019	8.9