Year	per 100,000 population
2000	35.5
2001	35.4
2002	34.8
2003	37.5
2004	37.3
2005	36.5
2006	34.7
2007	33.6
2008	33.9
2009	33.4
2010	33.1
2011	32.9
2012	34
2013	34.1
2014	34.8
2015	35.2
2016	36.1
2017	37
2018	37.9
2019	38.9