Year	per 1,000 people
1960	27.566
1961	27.444
1962	27.371
1963	27.282
1964	27.275
1965	27.244
1966	27.173
1967	27.134
1968	27.37
1969	27.624
1970	27.929
1971	28.694
1972	28.393
1973	28.376
1974	28.157
1975	27.678
1976	27.34
1977	26.782
1978	26.168
1979	25.671
1980	25.448
1981	25.241
1982	25.281
1983	25.366
1984	25.7
1985	25.813
1986	25.756
1987	25.49
1988	25.124
1989	24.665
1990	24.067
1991	23.667
1992	22.985
1993	22.213
1994	21.405
1995	20.523
1996	19.762
1997	19.074
1998	18.489
1999	17.968
2000	17.431
2001	16.912
2002	16.272
2003	15.543
2004	14.683
2005	13.922
2006	13.174
2007	12.477
2008	11.812
2009	11.206
2010	10.589
2011	10.145
2012	9.718
2013	9.346
2014	9.016
2015	8.799
2016	8.512
2017	8.239
2018	8.061
2019	7.824
2020	8.281
2021	8.141
2022	7.834