65% (1982)

56% (1961)

56% (1965)

53% (1969)

64% (1959)

56% (1965)

45% (1970)

50% (1969)

47% (1960)

60% (1976)

50% (1964)

58% (1960)

60% (1960)

56% (1967)

33% (1978)

45% (1968)

40% (1977)

70% (1960)

73% (1968)

33% (1985)