Year	per 100,000 population
2000	13.7
2001	13.7
2002	13.4
2003	13.2
2004	12.8
2005	12.9
2006	13
2007	12.9
2008	12.8
2009	11
2010	12.8
2011	12.8
2012	12.7
2013	12.1
2014	12.8
2015	12.7
2016	12.8
2017	12.6
2018	12.6
2019	12.6