Year	per 1,000 people
1960	9.535
1961	9.105
1962	8.758
1963	8.369
1964	8.037
1965	7.759
1966	7.49
1967	7.35
1968	7.261
1969	7.204
1970	7.082
1971	6.991
1972	6.892
1973	6.778
1974	6.618
1975	6.518
1976	6.569
1977	6.54
1978	6.669
1979	6.739
1980	6.817
1981	6.926
1982	7.018
1983	7.076
1984	7.286
1985	7.61
1986	7.473
1987	7.363
1988	7.463
1989	7.596
1990	7.378
1991	7.769
1992	19.114
1993	19.58
1994	10.635
1995	9.709
1996	8.425
1997	8.314
1998	8.33
1999	7.683
2000	8.358
2001	8.187
2002	8.859
2003	8.187
2004	8.258
2005	9.242
2006	8.901
2007	9.383
2008	9.103
2009	9.29
2010	9.499
2011	9.851
2012	9.888
2013	11.055
2014	12.276
2015	12.011
2016	11.613
2017	11.842
2018	12.056
2019	12.266
2020	14.094
2021	15.712
2022	15.865