42% (1976)

63% (1968)

39% (1984)

53% (1969)

41% (1976)

15% (1980)

45% (1965)

48% (1968)

69% (1974)

42% (1969)

38% (1966)

70% (1954)

30% (1971)

20% (1964)

45% (1963)

20% (1964)

50% (1953)

0% (1954)

30% (1967)

10% (1974)