55% (1951)

62% (1964)

76% (1958)

62% (1946)

53% (1963)

50% (1970)

55% (1966)

34% (1981)

55% (1964)

50% (1959)

53% (1953)

65% (1999)

53% (1954)

50% (1971)

50% (1971)

50% (1959)

58% (1965)

50% (1991)

42% (1945)

66% (1961)