Year	Per 100 000
2000	12
2001	11
2002	13
2003	13
2004	13
2005	15
2006	15
2007	15
2008	15
2009	15
2010	14
2011	15
2012	14
2013	13
2014	11
2015	10
2016	9.8
2017	8.8
2018	8
2019	8
2020	6.9