Year	per 100,000 population
2000	1.4
2001	1.6
2002	1.8
2003	1.9
2004	1.9
2005	2
2006	2
2007	2
2008	2.1
2009	2.1
2010	2.1
2011	2.1
2012	2.1
2013	2
2014	1.9
2015	1.9
2016	1.8
2017	2.1
2018	2.4
2019	2.3