Year	per 100,000 population
2000	31.4
2001	34.7
2002	34.5
2003	33.2
2004	32.5
2005	30.9
2006	30.7
2007	30.9
2008	30
2009	32.9
2010	33.3
2011	32.6
2012	35
2013	38.2
2014	37.2
2015	37.3
2016	37.9
2017	38.5
2018	39.5
2019	40.3