60% (1956)

57% (1987)

56% (1959)

63% (1967)

48% (1986)

47% (1958)

90% (1981)

58% (1960)

58% (1966)

65% (1961)

0% (1954)

45% (1989)

0% (1971)

66% (1986)

0% (1977)

0% (1974)

0% (1921)

80% (1986)

54% (1991)

0% (1968)