Year	per 100,000 population
2000	12
2001	17.3
2002	18.9
2003	16.1
2004	15.7
2005	15.6
2006	21.8
2007	15.8
2008	13.5
2009	13.5
2010	10.8
2011	9.7
2012	9.5
2013	9.7
2014	7.3
2015	7.5
2016	6.9
2017	6.2
2018	5.7
2019	5.2