56% (1961)

65% (1982)

33% (1985)

23% (1967)

50% (1969)

0% (1976)

70% (1960)

55% (1958)

47% (1974)

44% (1970)

0% (1966)

62% (1968)

47% (1960)

50% (1957)

56% (1967)

33% (1978)

48% (1974)

40% (1977)

58% (1960)

53% (1969)