Year	per 1,000 people
1960	18.09
1961	17.767
1962	17.538
1963	18.276
1964	16.259
1965	17.755
1966	19.239
1967	18.918
1968	18.608
1969	18.799
1970	18.502
1971	15.972
1972	15.715
1973	13.893
1974	13.742
1975	13.592
1976	13.488
1977	13.348
1978	13.408
1979	13.307
1980	13.08
1981	12.969
1982	12.817
1983	17.231
1984	17.913
1985	17.679
1986	14.094
1987	19.307
1988	25.865
1989	15.118
1990	14.831
1991	14.501
1992	17.206
1993	16.68
1994	10.879
1995	13.189
1996	12.94
1997	12.566
1998	14.803
1999	10.337
2000	9.699
2001	9.56
2002	9.34
2003	9.677
2004	10.325
2005	10.065
2006	8.705
2007	8.319
2008	8.381
2009	7.787
2010	7.648
2011	7.541
2012	7.312
2013	7.36
2014	7.143
2015	7.012
2016	6.974
2017	6.728
2018	6.647
2019	6.586
2020	6.67
2021	6.799
2022	6.677