80% (1961)

68% (1979)

62% (1982)

58% (1967)

71% (1958)

65% (1960)

65% (1958)

45% (1967)

57% (1961)

70% (1982)

82% (1959)

80% (1969)

20% (1976)

40% (1963)

0% (1984)

50% (1969)

70% (1983)

70% (1961)

0% (1958)

56% (1954)