Year	per 100,000 population
2000	12.4
2001	14.2
2002	14.6
2003	17.9
2004	18.7
2005	17.6
2006	20.5
2007	21.8
2008	21.8
2009	19.9
2010	18
2011	19.3
2012	19.1
2013	20.2
2014	17.3
2015	17.5
2016	15.1
2017	16.5
2018	12.8
2019	12.7