Year	per 1,000 people
1980	12.1850996017456
1985	12.2743997573853
1986	12.2651996612549
1987	12.1365003585815
1988	12.0267000198364
1989	11.9308004379272
1990	11.6106004715
1991	11.2891998291
1992	9.6816997528
1993	9.622300148
1994	8.5613002777
1995	8.3500003815
1996	7.9000000954
1997	7.7100000381
1998	7.5799999237
1999	7.5300002098
2000	7.04
2001	6.6
2002	5.98
2003	5.73
2004	5.64
2005	5.38
2006	5.55
2007	5.48
2008	5.63
2009	5.37
2010	5.27
2011	5.36
2012	5.53
2013	5.01
2014	5.01
2015	4.96
2016	4.76
2017	4.69
2018	4.57