60% (1956)

56% (1959)

57% (1987)

58% (1966)

63% (1967)

54% (1991)

0% (1979)

50% (1989)

80% (1986)

47% (1958)

49% (1986)

58% (1960)

0% (1961)

66% (1986)

0% (1971)

0% (1974)

90% (1980)

0% (1954)

0% (1968)

30% (1967)