Year	per 1,000 people
1960	19.195
1961	18.693
1962	18.301
1963	20.578
1964	17.786
1965	17.619
1966	17.591
1967	17.603
1968	17.833
1969	18.112
1970	18.352
1971	18.628
1972	18.93
1973	19.414
1974	19.926
1975	20.422
1976	20.591
1977	20.543
1978	20.065
1979	19.211
1980	18.199
1981	17.073
1982	16.063
1983	15.427
1984	14.982
1985	14.649
1986	14.431
1987	14.281
1988	14.328
1989	14.554
1990	15.403
1991	16.453
1992	17.877
1993	19.436
1994	103.534
1995	20.369
1996	19.68
1997	19.637
1998	18.779
1999	17.121
2000	15.774
2001	14.833
2002	13.926
2003	12.791
2004	11.546
2005	10.546
2006	9.803
2007	9.186
2008	8.64
2009	8.284
2010	8.068
2011	7.814
2012	7.604
2013	7.285
2014	6.953
2015	6.724
2016	6.49
2017	6.367
2018	6.227
2019	6.137
2020	5.998
2021	6.28
2022	5.847