Year	per 100,000 population
2000	17
2001	16.6
2002	16.1
2003	15.3
2004	15.2
2005	15.5
2006	15.6
2007	15.3
2008	15.1
2009	14.5
2010	14.6
2011	14.7
2012	14.3
2013	13.7
2014	12.8
2015	12.3
2016	12.1
2017	12
2018	12.6
2019	12.7