Year	per 100,000 population
2000	1.8
2001	1.5
2002	1.7
2003	1.8
2004	1.8
2005	1.9
2006	2
2007	1.9
2008	2
2009	2.3
2010	2.4
2011	2.7
2012	2.4
2013	2.4
2014	2.3
2015	2.3
2016	2.2
2017	2.2
2018	2.2
2019	2.2