Year	per 100,000 population
2000	3.5
2001	3.8
2002	3.9
2003	4
2004	4
2005	4.1
2006	4
2007	4.1
2008	4.4
2009	4.6
2010	4.5
2011	5.2
2012	4.9
2013	5.2
2014	5.7
2015	5.6
2016	5.6
2017	5.9
2018	5.4
2019	5.3