Year	per 1,000 people
1960	18.934
1961	18.424
1962	17.685
1963	17.579
1964	17.093
1965	17.452
1966	16.867
1967	16.63
1968	16.339
1969	16.224
1970	15.391
1971	14.723
1972	15.433
1973	15.402
1974	15.485
1975	15.599
1976	15.585
1977	15.157
1978	14.898
1979	14.402
1980	14.484
1981	13.438
1982	13.866
1983	13.641
1984	13.987
1985	13.397
1986	13.111
1987	13.077
1988	12.933
1989	12.128
1990	12.1
1991	11.932
1992	11.51
1993	11.638
1994	11.338
1995	11.3
1996	10.8
1997	10.49
1998	10.09
1999	9.6
2000	9.8
2001	10.5
2002	10.4
2003	10.6
2004	10.5
2005	9.7
2006	9.58
2007	9.22
2008	9.4
2009	9.6
2010	9.4
2011	9.1
2012	9.3
2013	9.2
2014	9.3
2015	9.3
2016	9.2
2017	9.2
2018	9.2
2019	9.3
2020	8.9
2021	9.1
2022	9.3