Year	per 1,000 people
1960	18.4
1961	17.8
1962	17.2
1963	16.5
1964	16.2
1965	16.6
1966	16.5
1967	15.5
1968	15
1969	14.5
1970	13.8
1971	14.6
1972	14.8
1973	15.1
1974	15
1975	14.9
1976	14.8
1977	14.9
1978	15
1979	15.1
1980	14.8
1981	14.6
1982	14.4
1983	14.1
1984	13.9
1985	13.3
1986	12.8
1987	12.5
1988	12.3
1989	11.7
1990	11.6
1991	11.1
1992	10.3
1993	10.6
1994	10.4
1995	10.9
1996	11.8
1997	12.2
1998	10.4
1999	10
2000	9.8
2001	9.2
2002	9
2003	8.9
2004	9.1
2005	9.563
2006	9.33
2007	9.4
2008	9.9
2009	10.1
2010	9.8
2011	9.6
2012	9.8
2013	9.4
2014	9.3
2015	8.9
2016	9
2017	8.9
2018	9
2019	8.9
2020	8.9
2021	9.4
2022	8.8