63% (1982)

42% (1986)

53% (1987)

68% (1984)

59% (1987)

50% (1978)

50% (1957)

62% (1975)

56% (1969)

0% (1982)

0% (1990)

48% (1986)

74% (1958)

69% (1963)

50% (1951)

0% (1932)

63% (1957)

50% (1986)

62% (1962)

68% (1971)