Year	per 100,000 people
2000	22
2001	21
2002	21
2003	21
2004	14
2005	15
2006	14
2007	13
2008	12
2009	9.7
2010	8.7
2011	8
2012	6.8
2013	8.5
2014	6.8
2015	6.5
2016	5.9
2017	4.8
2018	5.8
2019	4.5
2020	3.2
2021	2.8
2022	2.9