Year	per 1,000 people
1960	50.566
1961	51.033
1962	51.217
1963	51.307
1964	51.231
1965	51.318
1966	50.803
1967	50.308
1968	49.847
1969	48.886
1970	48.443
1971	48.184
1972	47.806
1973	47.285
1974	46.787
1975	46.445
1976	45.877
1977	45.418
1978	44.543
1979	44.03
1980	43.577
1981	42.865
1982	42.181
1983	41.685
1984	41.023
1985	40.509
1986	40.094
1987	39.329
1988	38.654
1989	37.915
1990	36.921
1991	36.572
1992	36.184
1993	35.883
1994	35.439
1995	34.843
1996	33.971
1997	32.784
1998	31.479
1999	30.551
2000	29.659
2001	29.153
2002	29.024
2003	29.068
2004	28.785
2005	28.605
2006	28.729
2007	29.085
2008	29.399
2009	29.044
2010	28.605
2011	27.84
2012	27.018
2013	26.207
2014	25.398
2015	24.441
2016	23.708
2017	23.377
2018	22.999
2019	22.6
2020	22.265
2021	21.95
2022	21.616