Year	per 100,000 population
2000	9.7
2001	9.5
2002	9.3
2003	9.3
2004	9
2005	9.4
2006	9.6
2007	10
2008	10.1
2009	10.3
2010	10.9
2011	10.1
2012	10
2013	9.9
2014	10
2015	10
2016	9.8
2017	9.7
2018	9.7
2019	9.6