Year	per 100,000 population
2000	26.8
2001	30.6
2002	33.5
2003	38.9
2004	39
2005	41
2006	40.3
2007	33.1
2008	33.4
2009	32.5
2010	32.5
2011	27.7
2012	26.1
2013	24.3
2014	22.5
2015	21.8
2016	20.6
2017	20.7
2018	21.7
2019	21.5