Year	per 1,000 people
1960	9.5
1961	9.3
1962	9.5
1963	9.6
1964	9.4
1965	9.4
1966	9.5
1967	9.4
1968	9.8
1969	9.5
1970	9.5
1971	9.3
1972	9.4
1973	9.3
1974	9.1
1975	8.8
1976	8.8
1977	8.6
1978	8.7
1979	8.5
1980	8.8
1981	8.6
1982	8.5
1983	8.6
1984	8.7
1985	8.7
1986	8.7
1987	8.6
1988	8.9
1989	8.8
1990	8.6
1991	8.6
1992	8.5
1993	8.8
1994	8.8
1995	8.8
1996	8.8
1997	8.7
1998	8.6
1999	8.6
2000	8.5
2001	8.5
2002	8.5
2003	8.4
2004	8.2
2005	8.3
2006	8.1
2007	8
2008	8.1
2009	7.9
2010	7.995
2011	8.073
2012	8.102
2013	8.215
2014	8.237
2015	8.44
2016	8.493
2017	8.638
2018	8.678
2019	8.697
2020	10.27
2021	10.4
2022	9.8