Year	per 100,000 population
2000	14.5
2001	14.8
2002	15.2
2003	15.1
2004	15.1
2005	15.2
2006	20.9
2007	15
2008	17.2
2009	16.6
2010	17.3
2011	17.5
2012	23
2013	23.5
2014	19.9
2015	18.8
2016	15.3
2017	20.3
2018	20.7
2019	21.1