Year	per 100,000 population
2000	17.9
2001	16.2
2002	16
2003	18
2004	17.8
2005	17.7
2006	18.7
2007	13.3
2008	14.3
2009	12.4
2010	12.5
2011	12.2
2012	11.7
2013	12.4
2014	12.3
2015	12.3
2016	12.3
2017	14
2018	14
2019	14.9