Year	per 100,000 population
2000	11.8
2001	13.4
2002	12.5
2003	13.9
2004	15.5
2005	14.2
2006	16.6
2007	18.2
2008	21.6
2009	18.5
2010	17.2
2011	13.3
2012	15.4
2013	13.1
2014	14.5
2015	15.8
2016	14.9
2017	13.3
2018	11.8
2019	12.4