Year	per 1,000 people
1960	10.7
1961	11.2
1962	10.8
1963	10.9
1964	10.7
1965	10.6
1966	11.2
1967	10.8
1968	10.7
1969	11.5
1970	10.7
1971	11.4
1972	10.5
1973	11.1
1974	11.1
1975	10.8
1976	10.9
1977	10.2
1978	10.1
1979	9.6
1980	9.7
1981	9.7
1982	9.3
1983	9.7
1984	9.7
1985	9.7
1986	9.5
1987	9.5
1988	9.8
1989	9.6
1990	10.3
1991	10.4
1992	10.1
1993	10.6
1994	9.9
1995	10.3
1996	10.6
1997	10.4
1998	10.5
1999	10.6
2000	10.2
2001	10.1
2002	10.2
2003	10.4
2004	9.7
2005	10.2
2006	9.7
2007	9.8
2008	9.9
2009	9.9
2010	10
2011	9.7
2012	10.2
2013	10.2
2014	10.1
2015	10.5
2016	10.7
2017	10.7
2018	11
2019	10.9
2020	12
2021	12
2022	11.9