42% (1953)

46% (1989)

57% (1939)

38% (1965)

70% (1966)

59% (1991)

50% (1989)

74% (1977)

42% (1958)

39% (1982)

52% (1983)

0% (1980)

68% (1979)

65% (1964)

47% (1961)

0% (1974)

57% (1984)

25% (1978)

58% (1980)

58% (1954)