50% (1955)

50% (1987)

0% (1962)

0% (1978)

50% (1979)

40% (1976)

0% (1963)

65% (1987)

48% (1979)

0% (1965)

0% (1986)

30% (1974)

50% (1959)

83% (1971)

59% (1990)

40% (1984)

90% (1962)

0% (1969)

0% (1985)

50% (1974)