Year	per 100,000 population
2000	26.8
2001	25.4
2002	25.1
2003	26.2
2004	25.5
2005	24.9
2006	24.7
2007	24.2
2008	24.7
2009	25.1
2010	25.1
2011	24.7
2012	24.5
2013	24.2
2014	23
2015	22.8
2016	24
2017	22.9
2018	22.7
2019	22.5