Year	per 1,000 people
1960	42.818
1961	42.065
1962	41.222
1963	40.232
1964	38.954
1965	37.647
1966	36.323
1967	35.037
1968	34.414
1969	33.931
1970	33.561
1971	33.11
1972	32.769
1973	33.021
1974	32.63
1975	32.238
1976	31.851
1977	31.559
1978	31.271
1979	31.095
1980	31.088
1981	31.132
1982	31.116
1983	31.039
1984	30.876
1985	30.435
1986	29.996
1987	29.3
1988	28.772
1989	27.957
1990	27.894
1991	27.942
1992	27.926
1993	27.731
1994	27.482
1995	27.057
1996	26.583
1997	25.87
1998	24.935
1999	24.118
2000	23.047
2001	21.523
2002	20.091
2003	19.339
2004	18.4
2005	17.722
2006	17.308
2007	17.077
2008	17.36
2009	17.348
2010	17.002
2011	17.261
2012	17.209
2013	17.225
2014	17.313
2015	17.101
2016	16.685
2017	16.355
2018	15.978
2019	15.58
2020	15.417
2021	15.24
2022	15.016