Year	per 1,000 people
1960	26.235
1961	25.999
1962	25.92
1963	25.594
1964	25.42
1965	25.207
1966	25.111
1967	26.201
1968	25.356
1969	25.152
1970	24.347
1971	23.708
1972	23.071
1973	22.485
1974	21.906
1975	21.269
1976	20.49
1977	19.886
1978	19.539
1979	19.343
1980	19.17
1981	18.982
1982	18.896
1983	18.759
1984	18.739
1985	18.795
1986	18.928
1987	18.807
1988	18.694
1989	18.58
1990	18.631
1991	18.819
1992	18.805
1993	18.702
1994	18.87
1995	18.859
1996	18.757
1997	18.531
1998	18.289
1999	17.865
2000	17.464
2001	17.158
2002	16.919
2003	16.541
2004	16.271
2005	15.883
2006	15.561
2007	15.322
2008	15.161
2009	14.82
2010	14.628
2011	14.336
2012	14.193
2013	14.004
2014	13.892
2015	13.803
2016	13.638
2017	13.435
2018	13.239
2019	12.989
2020	12.997
2021	13.083
2022	12.431