68% (1932)

62% (1946)

62% (1963)

61% (1936)

57% (1938)

57% (1934)

59% (1984)

50% (1967)

59% (1940)

31% (2002)

54% (1931)

72% (1951)

61% (1927)

58% (1938)

54% (1931)

57% (1951)

58% (1939)

40% (1988)

68% (1938)

63% (1948)