Year	per 1,000 people
1960	44.915
1961	44.533
1962	44.006
1963	43.309
1964	42.328
1965	41.085
1966	39.746
1967	38.392
1968	37.115
1969	35.96
1970	34.999
1971	34.19
1972	33.613
1973	33.358
1974	32.969
1975	32.438
1976	31.821
1977	31.184
1978	30.598
1979	30.166
1980	29.91
1981	30.639
1982	30.788
1983	31.154
1984	31.416
1985	31.443
1986	31.472
1987	31.355
1988	31.143
1989	30.923
1990	30.578
1991	30.155
1992	29.541
1993	28.934
1994	28.22
1995	27.481
1996	26.669
1997	25.908
1998	25.199
1999	24.622
2000	24.198
2001	23.862
2002	23.49
2003	23.08
2004	22.676
2005	22.271
2006	21.883
2007	21.476
2008	21.076
2009	20.704
2010	20.361
2011	20.06
2012	19.792
2013	19.547
2014	19.334
2015	19.127
2016	18.912
2017	18.758
2018	18.577
2019	18.409
2020	18.279
2021	18.154
2022	17.983