Year	per 100,000 population
2000	14.9
2001	13.4
2002	14.4
2003	14.6
2004	13.9
2005	12.9
2006	10.6
2007	12.2
2008	10.6
2009	8.9
2010	7.8
2011	7.5
2012	7.2
2013	6.4
2014	6.7
2015	7.2
2016	5.9
2017	5.6
2018	6.3
2019	5.9