Year	per 100,000 population
2000	5.7
2001	5.9
2002	6
2003	6.1
2004	6.1
2005	6
2006	6.5
2007	6.4
2008	6.5
2009	6.6
2010	6.8
2011	6.5
2012	6.6
2013	6.3
2014	6.2
2015	5.9
2016	6.2
2017	6.3
2018	6.6
2019	6.7