Year	per 1,000 people
1960	20.696
1961	20.241
1962	19.695
1963	19.172
1964	18.487
1965	17.762
1966	17.085
1967	16.42
1968	15.857
1969	15.664
1970	15.398
1971	15.063
1972	14.855
1973	14.591
1974	14.322
1975	14.127
1976	13.832
1977	13.626
1978	13.507
1979	13.227
1980	12.973
1981	12.796
1982	12.627
1983	12.505
1984	12.35
1985	12.211
1986	12.017
1987	11.849
1988	11.795
1989	11.528
1990	11.489
1991	11.31
1992	11.203
1993	11.023
1994	10.872
1995	10.737
1996	10.411
1997	10.296
1998	10.06
1999	10.07
2000	9.995
2001	9.943
2002	9.876
2003	9.812
2004	9.736
2005	9.628
2006	9.562
2007	9.409
2008	12.149
2009	9.193
2010	9.214
2011	9.026
2012	9.023
2013	8.799
2014	8.804
2015	8.673
2016	8.753
2017	8.808
2018	8.622
2019	8.692
2020	8.819
2021	9.769
2022	8.749