Year	per 100,000 population
2000	5.4
2001	5.6
2002	5.3
2003	6.2
2004	5.7
2005	6.9
2006	7.1
2007	7.6
2008	7.1
2009	5.9
2010	6.5
2011	3.7
2012	4
2013	4.1
2014	3.5
2015	3.9
2016	3.8
2017	3.7
2018	3.5
2019	1.7