Year	per 1,000 people
1960	9.837
1961	9.5
1962	9.321
1963	9.073
1964	8.818
1965	8.642
1966	8.485
1967	8.224
1968	8.091
1969	7.968
1970	7.867
1971	7.772
1972	7.677
1973	7.486
1974	7.41
1975	11.148
1976	31.168
1977	10.689
1978	10.596
1979	10.505
1980	10.374
1981	10.22
1982	19.378
1983	9.941
1984	9.766
1985	9.672
1986	9.432
1987	9.278
1988	9.128
1989	7.963
1990	7.848
1991	5.199
1992	5.207
1993	5.153
1994	5.068
1995	4.969
1996	4.92
1997	4.787
1998	4.788
1999	4.647
2000	4.554
2001	4.473
2002	4.295
2003	4.196
2004	4.158
2005	4.16
2006	4.333
2007	4.093
2008	4.026
2009	4.039
2010	4.066
2011	4.099
2012	4.134
2013	4.197
2014	4.221
2015	4.235
2016	4.343
2017	4.495
2018	4.704
2019	5.178
2020	6.253
2021	8.271
2022	8.857