Year	per 100,000 people
2000	22
2001	20
2002	22
2003	20
2004	20
2005	19
2006	18
2007	17
2008	16
2009	17
2010	17
2011	17
2012	16
2013	19
2014	16
2015	17
2016	17
2017	20
2018	18
2019	16
2020	15
2021	15
2022	15