Year	per 1,000 people
1960	7.6
1961	7.6
1962	7.9
1963	7.5
1964	7.6
1965	7.4
1966	7.4
1967	7.7
1968	7.6
1969	8.1
1970	8.2
1971	8.7
1972	8
1973	8.4
1974	8.2
1975	8.7
1976	8.9
1977	9
1978	9.4
1979	9.2
1980	9.8
1981	9.2
1982	9.3
1983	9.6
1984	10
1985	10.3
1986	10.1
1987	10.1
1988	9.9
1989	10.1
1990	10.2
1991	10.6
1992	10.3
1993	10.2
1994	10
1995	10
1996	10
1997	9.8
1998	9.7
1999	9.9
2000	9.6
2001	9.5
2002	9.4
2003	9.6
2004	9.5
2005	9.6
2006	9.7
2007	9.9
2008	10
2009	10.1
2010	9.9
2011	9.9
2012	10.1
2013	10.2
2014	9.9
2015	10.4
2016	10.2
2017	10.6
2018	10.9
2019	10.8
2020	12.6
2021	13.8
2022	12.2