Year	per 1,000 people
1960	33.883
1961	32.831
1962	31.649
1963	30.416
1964	29.147
1965	27.889
1966	26.663
1967	25.503
1968	24.592
1969	23.735
1970	22.974
1971	22.313
1972	21.766
1973	21.492
1974	21.382
1975	21.393
1976	21.485
1977	21.739
1978	21.92
1979	21.993
1980	21.931
1981	21.73
1982	21.476
1983	21.385
1984	21.183
1985	20.919
1986	20.617
1987	20.269
1988	19.821
1989	19.184
1990	18.662
1991	17.722
1992	16.443
1993	16.126
1994	15.431
1995	15.991
1996	16.153
1997	16.388
1998	15.078
1999	14.361
2000	14.427
2001	13.739
2002	12.992
2003	12.621
2004	11.921
2005	12.348
2006	13.055
2007	12.962
2008	12.748
2009	12.35
2010	12.193
2011	12.246
2012	12.723
2013	13.316
2014	13.533
2015	12.428
2016	12.3
2017	11.53
2018	9.881
2019	9.138
2020	8.102
2021	7.193
2022	7.178