56% (1965)

53% (1971)

64% (1982)

56% (1961)

73% (1968)

56% (1967)

50% (1964)

56% (1965)

10% (1974)

62% (1968)

70% (1960)

60% (1976)

64% (1959)

50% (1982)

57% (1974)

45% (1970)

45% (1968)

50% (1969)

50% (1957)

53% (1969)