Year	per 1,000 people
1960	32.664
1961	33.52
1962	34.443
1963	35.189
1964	34.69
1965	33.933
1966	33.129
1967	32.362
1968	31.644
1969	30.86
1970	29.966
1971	29.008
1972	27.96
1973	26.351
1974	24.31
1975	21.89
1976	19.529
1977	17.364
1978	15.078
1979	14.447
1980	13.706
1981	13.649
1982	15.734
1983	16.355
1984	16.432
1985	16.559
1986	16.749
1987	17.305
1988	17.915
1989	17.744
1990	17.48
1991	16.033
1992	14.977
1993	14.147
1994	13.572
1995	13.374
1996	12.799
1997	13.578
1998	13.444
1999	13.287
2000	12.628
2001	12.171
2002	12.262
2003	11.829
2004	11.031
2005	10.446
2006	9.752
2007	9.921
2008	10.83
2009	11.487
2010	11.417
2011	11.76
2012	11.191
2013	11.122
2014	10.86
2015	10.972
2016	10.351
2017	10.182
2018	10.348
2019	9.752
2020	9.344
2021	8.922
2022	8.889