Year	per 1,000 people
1960	16.917
1961	17.589
1962	17.432
1963	18.043
1964	17.469
1965	17.555
1966	17.551
1967	17.182
1968	17.374
1969	17.62
1970	17.455
1971	17.363
1972	17.735
1973	17.034
1974	17.34
1975	16.819
1976	16.742
1977	16.731
1978	16.668
1979	16.513
1980	16.3
1981	15.872
1982	16.064
1983	15.855
1984	15.972
1985	16.498
1986	16.176
1987	15.908
1988	15.451
1989	15.653
1990	14.76
1991	14.529
1992	13.979
1993	14.899
1994	14.113
1995	14.261
1996	13.838
1997	13.781
1998	13.318
1999	13.854
2000	12.885
2001	12.239
2002	12.227
2003	11.871
2004	11.121
2005	10.719
2006	10.504
2007	10.5
2008	10.32
2009	10.167
2010	9.97
2011	9.845
2012	9.896
2013	9.992
2014	9.781
2015	10.905
2016	9.979
2017	10.023
2018	10.054
2019	10.09
2020	10.414
2021	10.604
2022	10.461