60% (1966)

72% (1961)

70% (1962)

60% (1955)

50% (1980)

59% (1981)

48% (1969)

57% (1965)

47% (1982)

50% (1964)

53% (1979)

50% (1970)

52% (1958)

54% (1955)

50% (1962)

50% (1967)

55% (1958)

45% (1972)

50% (1971)

50% (1958)