Year	per 1,000 people
1960	36.56
1961	35.672
1962	35.113
1963	34.809
1964	34.432
1965	33.78
1966	33.114
1967	33.15
1968	32.292
1969	31.396
1970	30.631
1971	29.725
1972	29.313
1973	28.814
1974	27.923
1975	27.86
1976	27.96
1977	27.888
1978	28.465
1979	28.788
1980	28.146
1981	27.726
1982	25.945
1983	24.523
1984	23.768
1985	23.004
1986	22.076
1987	21.472
1988	20.828
1989	20.86
1990	20.586
1991	20.483
1992	20.36
1993	19.761
1994	19.289
1995	18.88
1996	18.39
1997	17.937
1998	17.458
1999	17.703
2000	18.189
2001	18.806
2002	18.914
2003	18.885
2004	18.771
2005	18.821
2006	19.203
2007	18.979
2008	18.468
2009	17.907
2010	17.553
2011	17.512
2012	17.318
2013	17.005
2014	16.396
2015	15.886
2016	15.496
2017	15.17
2018	14.805
2019	14.534
2020	14.235
2021	14.019
2022	13.781