50% (1976)

50% (1965)

50% (1983)

44% (1964)

50% (1957)

50% (1963)

63% (1971)

52% (1969)

50% (1969)

0% (1962)

55% (1968)

50% (1983)

50% (1974)

38% (1966)

55% (1972)

50% (1966)

50% (1964)

51% (1967)

52% (1975)

50% (1962)