Year	per 100,000 people
2000	13
2001	12
2002	12
2003	12
2004	10
2005	10
2006	9.9
2007	11
2008	11
2009	9.6
2010	9.3
2011	9.1
2012	9
2013	9
2014	8.6
2015	8.5
2016	8.8
2017	9.1
2018	9
2019	9.1
2020	8.3
2021	7.6
2022	7.2