60% (1949)

53% (1931)

60% (1966)

58% (1926)

58% (1932)

56% (1932)

62% (1925)

54% (1929)

62% (1934)

60% (1940)

61% (1984)

62% (1965)

57% (1968)

70% (1951)

69% (1992)

63% (1971)

60% (1947)

66% (1929)

56% (1962)

70% (1948)