62% (1966)

55% (1970)

59% (1956)

63% (1966)

62% (1972)

58% (1966)

64% (1965)

43% (1974)

0% (1970)

35% (1975)

30% (1973)

50% (1982)

42% (1970)

58% (1974)

54% (1967)

20% (1972)

20% (1968)

34% (1976)

0% (1963)

50% (1966)