Year	per 1,000 people
1960	20.985
1961	20.894
1962	20.775
1963	20.629
1964	20.443
1965	20.225
1966	19.957
1967	19.664
1968	19.241
1969	18.848
1970	18.544
1971	18.258
1972	17.991
1973	17.586
1974	17.365
1975	17.082
1976	16.725
1977	16.325
1978	16.003
1979	15.608
1980	15.388
1981	15.199
1982	15.145
1983	15.118
1984	15.05
1985	14.974
1986	14.796
1987	14.658
1988	14.484
1989	14.436
1990	14.477
1991	14.502
1992	14.609
1993	14.6
1994	14.491
1995	14.355
1996	14.346
1997	14.459
1998	14.2
1999	13.688
2000	13.251
2001	12.731
2002	12.277
2003	11.682
2004	11.275
2005	10.879
2006	10.522
2007	10.154
2008	9.825
2009	9.41
2010	8.88
2011	8.435
2012	7.992
2013	7.615
2014	7.252
2015	6.959
2016	6.65
2017	6.402
2018	6.177
2019	6.012
2020	6.179
2021	6.222
2022	5.959