Year	per 100,000 population
2000	3
2001	2.9
2002	2.9
2003	3.1
2004	3
2005	3
2006	3.4
2007	3.7
2008	4.4
2009	4.6
2010	4.7
2011	4.9
2012	5.4
2013	5.8
2014	6
2015	6
2016	5.7
2017	5.3
2018	5.3
2019	5.2