Year	per 100,000 population
2000	8.6
2001	8
2002	8.3
2003	8.5
2004	8.5
2005	8
2006	7.5
2007	7.4
2008	7.8
2009	7.6
2010	6.9
2011	7.1
2012	7.7
2013	8.5
2014	8.6
2015	7.9
2016	7.8
2017	8.2
2018	7.8
2019	7.7