Year	per 1,000 people
1960	32.36
1961	31.475
1962	30.401
1963	29.247
1964	28.006
1965	26.884
1966	25.611
1967	24.447
1968	23.474
1969	22.724
1970	21.978
1971	21.586
1972	21.119
1973	20.454
1974	19.866
1975	19.336
1976	18.8
1977	18.168
1978	17.676
1979	17.359
1980	17.492
1981	17.945
1982	18.24
1983	18.17
1984	17.888
1985	17.406
1986	16.867
1987	16.39
1988	15.921
1989	15.318
1990	14.912
1991	14.75
1992	14.411
1993	12.524
1994	11.548
1995	10.698
1996	11.221
1997	12.296
1998	11.791
1999	10.556
2000	10.068
2001	9.816
2002	9.902
2003	9.86
2004	9.842
2005	9.582
2006	9.374
2007	9.794
2008	9.835
2009	9.851
2010	9.492
2011	8.878
2012	9.211
2013	8.949
2014	8.768
2015	8.842
2016	8.953
2017	9.02
2018	9.067
2019	8.819
2020	8.611
2021	8.42
2022	8.278