Year	per 100,000 people
2005	40
2006	40
2007	37
2008	35
2009	32
2010	30
2011	28
2012	24
2013	27
2014	23
2015	21
2016	19
2017	19
2018	17
2019	14
2020	14
2021	14
2022	14