55% (1957)

45% (1972)

52% (1956)

50% (1980)

50% (1957)

70% (1962)

48% (1969)

38% (1982)

53% (1979)

50% (1957)

59% (1981)

52% (1958)

53% (1951)

50% (1970)

50% (1949)

50% (1957)

60% (1955)

50% (1958)

69% (1961)

57% (1969)