Year	per 1,000 people
1960	24.851
1961	24.627
1962	24.389
1963	24.124
1964	23.665
1965	23.257
1966	22.872
1967	22.407
1968	22.076
1969	21.615
1970	21.186
1971	20.77
1972	20.425
1973	20.073
1974	19.739
1975	19.315
1976	18.953
1977	18.619
1978	18.13
1979	17.708
1980	17.241
1981	16.871
1982	16.481
1983	16.139
1984	15.62
1985	15.17
1986	14.723
1987	14.127
1988	13.739
1989	13.095
1990	12.66
1991	12.131
1992	11.552
1993	11.067
1994	10.547
1995	10.11
1996	9.713
1997	9.252
1998	8.839
1999	8.544
2000	8.294
2001	7.949
2002	7.954
2003	7.587
2004	7.359
2005	7.132
2006	7.014
2007	6.893
2008	6.943
2009	6.897
2010	6.987
2011	6.891
2012	6.961
2013	6.887
2014	6.981
2015	7.376
2016	6.93
2017	6.971
2018	7.041
2019	6.871
2020	7.209
2021	7.776
2022	6.651