Year	per 100,000 population
2000	20.8
2001	19.9
2002	20.2
2003	20.9
2004	21.2
2005	21.7
2006	22.3
2007	21
2008	20.9
2009	20.9
2010	20.3
2011	20.9
2012	21
2013	20.4
2014	20.6
2015	20.7
2016	20.8
2017	21.1
2018	21.2
2019	21