Year	per 100,000 population
2000	6.4
2001	6.9
2002	7.9
2003	8.5
2004	9
2005	9.9
2006	10
2007	10.2
2008	10.5
2009	10.5
2010	9.9
2011	9.8
2012	10.1
2013	9.6
2014	8.8
2015	8.8
2016	9
2017	9.2
2018	8.1
2019	7.6