75% (1930)

63% (1952)

53% (1948)

63% (1935)

47% (1938)

30% (1979)

49% (1933)

59% (1957)

77% (1950)

71% (1937)

59% (1976)

54% (1934)

52% (1935)

67% (1948)

53% (1939)

62% (1937)

60% (1940)

57% (1966)

57% (1951)

57% (1926)