Year	per 1,000 people
1960	44.74
1961	44.232
1962	43.739
1963	43.282
1964	42.778
1965	42.113
1966	41.505
1967	41.26
1968	39.657
1969	38.021
1970	36.522
1971	35.26
1972	34.287
1973	33.663
1974	33.355
1975	33.27
1976	33.37
1977	33.59
1978	34.146
1979	34.674
1980	34.991
1981	35.077
1982	34.916
1983	34.494
1984	33.778
1985	32.87
1986	31.915
1987	31.057
1988	30.766
1989	30.638
1990	30.655
1991	30.867
1992	30.936
1993	30.806
1994	30.488
1995	30.085
1996	29.834
1997	29.285
1998	29.343
1999	28.875
2000	28.378
2001	28.257
2002	28.71
2003	29.248
2004	29.347
2005	29.13
2006	28.731
2007	28.277
2008	27.993
2009	27.63
2010	27.266
2011	26.943
2012	26.505
2013	26.104
2014	25.68
2015	25.171
2016	24.543
2017	24.015
2018	23.625
2019	23.424
2020	23.139
2021	23.045
2022	22.894