60% (1956)

57% (1987)

56% (1959)

58% (1966)

48% (1986)

45% (1989)

0% (1954)

63% (1967)

47% (1958)

90% (1981)

80% (1986)

58% (1960)

90% (1986)

90% (1967)

30% (1967)

66% (1986)

0% (1971)

65% (1961)

60% (1968)

0% (1961)