Year	per 1,000 people
1960	47.791
1961	47.587
1962	46.637
1963	45.35
1964	43.387
1965	41.037
1966	38.926
1967	36.124
1968	34.304
1969	32.647
1970	31.317
1971	30.183
1972	29.081
1973	28.199
1974	27.859
1975	27.426
1976	27.02
1977	26.745
1978	26.765
1979	27.061
1980	27.671
1981	26.3
1982	25.2
1983	26.1
1984	26.6
1985	26.6
1986	27.6
1987	26.8
1988	26.4
1989	26.4
1990	25.9
1991	26.6
1992	25.2
1993	23.7
1994	21.4
1995	18.9
1996	16.6
1997	16.8
1998	15.7
1999	14.7
2000	14.5
2001	13.6
2002	13.5
2003	13.8
2004	15.8
2005	16.9
2006	17.6
2007	17.7
2008	17.4
2009	17
2010	18.3
2011	19.2
2012	18.8
2013	18.3
2014	17.9
2015	17.2
2016	16.3
2017	14.6
2018	14
2019	14.1
2020	12.5
2021	11.1
2022	12.1