Year	per 1,000 people
1998	2.867
1999	2.965
2000	3.079
2001	3.082
2002	2.845
2003	3
2004	3.289
2005	3.069
2006	3.261
2007	2.916
2008	2.923
2009	3.557
2010	3.702
2013	3.802
2014	3.539
2017	3.219
2018	2.688
2019	3.16