Year	per 1,000 people
1960	18.469
1961	17.847
1962	17.338
1963	16.815
1964	16.357
1965	15.917
1966	15.446
1967	15.114
1968	14.744
1969	14.332
1970	13.913
1971	13.595
1972	13.34
1973	12.983
1974	12.541
1975	11.983
1976	11.576
1977	11.086
1978	10.71
1979	10.424
1980	10.24
1981	10.186
1982	10.185
1983	10.194
1984	10.207
1985	9.919
1986	9.597
1987	9.229
1988	8.868
1989	8.642
1990	8.315
1991	8.137
1992	7.977
1993	7.887
1994	7.807
1995	8.178
1996	7.347
1997	6.97
1998	6.624
1999	6.321
2000	5.844
2001	5.446
2002	5.291
2003	5.19
2004	5.175
2005	5.151
2006	5.601
2007	5.636
2008	6.15
2009	6.205
2010	6.409
2011	5.938
2012	5.808
2013	5.472
2014	5.401
2015	5.695
2016	5.198
2017	4.868
2018	5.275
2019	5.162
2020	5.692
2021	6.028
2022	5.659