Year	per 100,000 population
2000	25.6
2001	20.9
2002	17.7
2003	13.1
2004	16
2005	20.9
2006	14.8
2007	15.7
2008	14.5
2009	16.3
2010	12.7
2011	13.1
2012	13
2013	14.1
2014	8.1
2015	8.3
2016	8.2
2017	8.7
2018	8.2
2019	7.7