59% (1981)

45% (1978)

53% (1969)

30% (1972)

23% (1981)

60% (1970)

0% (1955)

56% (1971)

62% (1952)

70% (1970)

20% (1956)

0% (1969)

50% (1972)

48% (1982)

60% (1973)

50% (1966)

0% (1957)

52% (1982)

58% (1970)

0% (1973)