Year	per 1,000 people
1960	52.229
1961	51.39
1962	50.461
1963	49.47
1964	48.465
1965	47.437
1966	46.69
1967	45.407
1968	43.983
1969	42.919
1970	42.061
1971	41.184
1972	40.359
1973	39.613
1974	38.501
1975	37.549
1976	36.867
1977	36.111
1978	35.414
1979	34.876
1980	34.258
1981	33.65
1982	33.183
1983	33.087
1984	32.615
1985	31.971
1986	31.624
1987	31.326
1988	31.288
1989	31.29
1990	30.887
1991	30.37
1992	29.802
1993	29.25
1994	28.607
1995	27.778
1996	27.026
1997	26.079
1998	25.219
1999	25.006
2000	24.842
2001	24.317
2002	23.868
2003	23.425
2004	22.972
2005	22.485
2006	21.865
2007	21.705
2008	21.947
2009	22.132
2010	22.038
2011	21.792
2012	21.454
2013	21.166
2014	20.867
2015	20.596
2016	20.258
2017	19.993
2018	19.762
2019	19.291
2020	18.78
2021	18.432
2022	18.111