Year	per 100,000 people
2000	35
2001	33
2002	31
2003	31
2004	26
2005	21
2006	19
2007	18
2008	16
2009	15
2010	18
2011	15
2012	13
2013	12
2014	9.3
2015	10
2016	8.6
2017	7.6
2018	7.1
2019	6.2
2020	4.5
2021	3.7
2022	5