Year	per 1,000 people
1960	11.655
1961	10.73
1962	10.449
1963	9.268
1964	8.7
1965	8.278
1966	7.827
1967	7.517
1968	7.257
1969	7.001
1970	6.75
1971	6.487
1972	6.18
1973	5.868
1974	5.595
1975	5.339
1976	5.13
1977	4.952
1978	4.809
1979	4.687
1980	4.573
1981	4.492
1982	4.405
1983	4.319
1984	4.235
1985	4.168
1986	4.089
1987	4.041
1988	3.981
1989	3.926
1990	3.87
1991	3.817
1992	3.756
1993	3.677
1994	3.603
1995	3.532
1996	3.466
1997	3.415
1998	3.375
1999	3.346
2000	3.331
2001	3.326
2002	3.339
2003	3.36
2004	3.396
2005	3.438
2006	3.491
2007	3.551
2008	3.615
2009	3.684
2010	3.751
2011	3.813
2012	3.926
2013	4.043
2014	4.162
2015	4.29
2016	4.42
2017	4.556
2018	4.7
2019	4.834
2020	4.975
2021	5.211
2022	5.431