65% (1955)

60% (1971)

55% (1992)

58% (1963)

0% (1976)

57% (1966)

50% (1985)

56% (1960)

50% (1966)

50% (1953)

63% (1966)

0% (1959)

65% (1997)

63% (1991)

10% (1971)

57% (1967)

52% (1969)

62% (1961)

50% (1981)

67% (1974)