Year	per 1,000 people
1960	17.996
1961	17.45
1962	16.923
1963	16.616
1964	16.335
1965	16.189
1966	16.061
1967	16.031
1968	15.959
1969	15.779
1970	15.396
1971	14.668
1972	14.035
1973	13.318
1974	12.826
1975	12.543
1976	12.491
1977	12.637
1978	12.892
1979	13.339
1980	15.815
1981	15.424
1982	13.772
1983	13.026
1984	11.596
1985	10.464
1986	10.059
1987	9.151
1988	8.35
1989	9.062
1990	7.812
1991	7.257
1992	6.929
1993	6.702
1994	6.556
1995	6.478
1996	6.314
1997	6.14
1998	6.087
1999	5.904
2000	5.876
2001	6.119
2002	6.046
2003	6.268
2004	6.408
2005	6.599
2006	6.705
2007	6.814
2008	6.74
2009	6.75
2010	6.758
2011	6.892
2012	7.038
2013	7.149
2014	7.168
2015	7.07
2016	6.925
2017	6.857
2018	6.938
2019	7.451
2020	8.442
2021	8.661
2022	8.173