Year	per 100,000 population
2000	6.8
2001	7.7
2002	9.1
2003	9.4
2004	9
2005	9
2006	7.6
2007	7
2008	7.1
2009	7.3
2010	6.7
2011	5.4
2012	4.1
2013	3.6
2014	7
2015	7.1
2016	6
2017	5
2018	5.7
2019	5.5