Year	per 1,000 people
1960	14.995
1961	14.727
1962	14.427
1963	13.948
1964	13.446
1965	12.995
1966	12.557
1967	12.1
1968	11.624
1969	11.184
1970	10.979
1971	10.69
1972	10.468
1973	10.394
1974	10.153
1975	10.004
1976	9.765
1977	9.795
1978	9.588
1979	7
1980	7.5
1981	7.2
1982	7.4
1983	7.5
1984	7.5
1985	7.2
1986	7.1
1987	7
1988	6.9
1989	6.3
1990	6.1
1991	6.2
1992	6.5
1993	6.6
1994	6.6
1995	6.4
1996	6.2
1997	5.8
1998	5.9
1999	5.4
2000	5.5
2001	5.3
2002	5.4
2003	5.3
2004	5
2005	5.4
2006	5.3
2007	5.1
2008	5.1
2009	4.8
2010	4.8
2011	4.9
2012	4.9
2013	4.8
2014	4.9
2015	4.9
2016	4.9
2017	5
2018	4.7
2019	4.6
2020	5.1
2021	5
2022	4.8