Year	per 1,000 people
1960	25.41
1961	24.9
1962	24.396
1963	23.898
1964	23.394
1965	22.893
1966	22.4
1967	21.893
1968	21.39
1969	20.852
1970	20.302
1971	19.767
1972	19.238
1973	18.743
1974	18.271
1975	17.833
1976	17.461
1977	17.212
1978	17.003
1979	16.825
1980	16.68
1981	16.535
1982	16.448
1983	16.349
1984	16.273
1985	16.19
1986	16.126
1987	16.09
1988	16.07
1989	16.071
1990	16.088
1991	16.132
1992	16.206
1993	16.273
1994	16.4
1995	16.577
1996	16.795
1997	16.99
1998	17.068
1999	17.159
2000	17.325
2001	17.245
2002	17.168
2003	16.889
2004	16.658
2005	16.367
2006	16.08
2007	15.696
2008	15.313
2009	14.907
2010	14.534
2011	14.092
2012	13.622
2013	13.392
2014	13.517
2015	12.15
2016	11.711
2017	11.544
2018	11.23
2019	10.873
2020	11.041
2021	11.393
2022	11.003