Year	per 100,000 people
2000	21
2001	21
2002	21
2003	21
2004	19
2005	19
2006	19
2007	18
2008	18
2009	17
2010	17
2011	16
2012	15
2013	15
2014	14
2015	14
2016	13
2017	13
2018	12
2019	11
2020	9.2
2021	9.1
2022	8.9