42% (1976)

39% (1984)

64% (1968)

57% (1969)

56% (1965)

48% (1968)

55% (1967)

10% (1974)

41% (1976)

38% (1966)

69% (1974)

45% (1963)

0% (1954)

30% (1971)

42% (1969)

70% (1954)

15% (1980)

50% (1953)

20% (1964)

20% (1964)