Year	per 1,000 people
1960	22.169
1961	21.079
1962	20.021
1963	19.647
1964	18.686
1965	17.317
1966	15.745
1967	14.337
1968	13.939
1969	13.902
1970	13.231
1971	12.719
1972	12.394
1973	12.059
1974	12.018
1975	11.924
1976	11.77
1977	11.661
1978	11.434
1979	11.287
1980	11.312
1981	11.545
1982	11.628
1983	11.685
1984	11.634
1985	11.381
1986	12.431
1987	10.596
1988	10.351
1989	10.819
1990	10.105
1991	10.064
1992	10.088
1993	10.093
1994	10.054
1995	9.984
1996	9.887
1997	9.768
1998	9.687
1999	9.522
2000	9.334
2001	9.101
2002	8.817
2003	8.483
2004	8.151
2005	8.083
2006	7.699
2007	7.477
2008	7.26
2009	7.169
2010	7.055
2011	7.145
2012	6.775
2013	6.552
2014	6.345
2015	6.198
2016	6.123
2017	5.863
2018	5.879
2019	5.876
2020	6.294
2021	6.387
2022	5.838