62% (1966)

59% (1956)

62% (1966)

64% (1965)

60% (1967)

63% (1972)

68% (1967)

58% (1966)

52% (1976)

55% (1970)

20% (1972)

48% (1985)

43% (1974)

42% (1970)

0% (1969)

0% (1970)

50% (1966)

58% (1974)

50% (1982)

30% (1973)