53% (1969)

59% (1981)

45% (1978)

52% (1982)

64% (1956)

55% (1982)

30% (1972)

50% (1972)

60% (1973)

35% (1977)

56% (1971)

23% (1981)

20% (1956)

70% (1970)

58% (1970)

48% (1982)

0% (1973)

0% (1969)

20% (1977)

45% (1977)