48% (1961)

51% (1957)

58% (1930)

50% (1945)

58% (1922)

50% (1966)

62% (1934)

47% (1959)

47% (1949)

54% (1950)

62% (1985)

66% (1947)

49% (1954)

61% (1959)

60% (1943)

40% (1956)

59% (1954)

54% (1945)

63% (1951)

57% (1938)