Year	per 1,000 people
1960	29.82
1961	29.361
1962	28.86
1963	28.33
1964	27.775
1965	27.187
1966	26.556
1967	25.896
1968	25.235
1969	24.406
1970	23.621
1971	22.873
1972	22.114
1973	21.347
1974	20.637
1975	19.946
1976	19.252
1977	18.587
1978	17.959
1979	17.338
1980	16.732
1981	16.13
1982	15.535
1983	14.976
1984	14.444
1985	13.951
1986	13.431
1987	12.921
1988	12.426
1989	11.97
1990	11.543
1991	11.145
1992	10.699
1993	10.312
1994	10.024
1995	9.555
1996	9.189
1997	8.858
1998	8.529
1999	8.221
2000	8.368
2001	7.827
2002	7.669
2003	7.542
2004	7.498
2005	7.473
2006	7.353
2007	7.166
2008	7.009
2009	6.922
2010	6.808
2011	6.737
2012	6.689
2013	6.683
2014	6.705
2015	6.759
2016	6.837
2017	6.94
2018	6.766
2019	6.626
2020	6.545
2021	6.477
2022	6.356