Year	per 1,000 people
1960	31.375
1961	30.084
1962	28.964
1963	27.423
1964	26.668
1965	26.016
1966	25.2
1967	24.386
1968	23.69
1969	23.136
1970	22.524
1971	22.15
1972	21.775
1973	21.581
1974	21.534
1975	21.608
1976	21.558
1977	21.441
1978	21.414
1979	21.506
1980	21.62
1981	21.799
1982	21.917
1983	21.46
1984	20.8
1985	20.134
1986	19.475
1987	18.906
1988	18.105
1989	17.386
1990	16.791
1991	16.38
1992	15.307
1993	14.976
1994	15.822
1995	15.076
1996	14.305
1997	14.8
1998	14.6
1999	13.5
2000	14.5
2001	13.3
2002	13.7
2003	13.3
2004	11.5
2005	11
2006	11.1
2007	11.1
2008	11.2
2009	11.5
2010	11.8
2011	11.1
2012	11.4
2013	11.2
2014	11.4
2015	11.1
2016	11.0987266524808
2017	10.5
2018	10.3
2019	9.6
2020	9.2
2021	10.2
2022	9.9