72% (1935)

64% (1965)

51% (1951)

66% (1941)

58% (1941)

61% (1923)

46% (1965)

57% (1957)

66% (1968)

71% (1928)

64% (1988)

59% (1953)

66% (1932)

60% (1950)

55% (1945)

45% (1972)

71% (1941)

62% (1976)

61% (1956)

60% (1971)