Year	per 100,000 population
2000	2.8
2001	2.7
2002	2.7
2003	2.6
2004	2.7
2005	2.7
2006	2.5
2007	2.9
2008	2.9
2009	3
2010	3
2011	3
2012	3
2013	3
2014	2.8
2015	2.8
2016	2.7
2017	3
2018	2.5
2019	2.8