year	deaths
1960	5.1
1961	5.1
1962	5.1
1963	5.3
1964	5.4
1965	5.3
1966	5.5
1967	5.4
1968	5.2
1969	4.9
1970	4.7
1971	4.5
1972	4.3
1973	4.1
1974	3.5
1975	3.4
1976	3.3
1977	3.3
1978	3.3
1979	3.3
1980	3.3
1981	3.2
1982	2.8 
1983	2.6
1984	2.6
1985	2.5
1986	2.5
1987	2.4
1988	2.3
1989	2.2
1990	2.1
1991	1.9
1992	1.8
1993	1.8
1994	1.7