Year	per 1,000 people
1960	25.588
1961	25.683
1962	25.712
1963	25.723
1964	25.66
1965	25.52
1966	25.296
1967	25.015
1968	24.718
1969	24.363
1970	23.955
1971	23.577
1972	23.129
1973	22.797
1974	22.436
1975	22.149
1976	21.784
1977	21.362
1978	20.972
1979	20.654
1980	20.321
1981	19.94
1982	19.641
1983	19.419
1984	19.257
1985	19.688
1986	19.432
1987	19.738
1988	20.102
1989	20.475
1990	25.501
1991	21.006
1992	21.008
1993	21.512
1994	21.786
1995	20.233
1996	19.875
1997	17.565
1998	16.855
1999	16.141
2000	15.228
2001	14.312
2002	13.58
2003	13.852
2004	12.134
2005	11.599
2006	11.171
2007	10.765
2008	10.421
2009	10.115
2010	9.907
2011	9.741
2012	9.57
2013	9.482
2014	9.799
2015	9.715
2016	9.059
2017	8.954
2018	8.793
2019	8.658
2020	8.753
2021	8.838
2022	8.632