Year	per 1,000 people
1998	2.576
1999	2.951
2000	2.501
2001	2.267
2002	2.31
2003	2.436
2004	2.557
2005	2.361
2006	2.596
2007	2.931
2008	2.798
2009	2.839
2010	2.781
2011	2.725
2012	2.674
2016	3.778
2018	5.018