60% (1935)

62% (1984)

68% (1945)

58% (2002)

71% (1962)

69% (1939)

70% (1953)

64% (1982)

64% (1992)

62% (1956)

71% (1974)

57% (2003)

61% (2002)

50% (1978)

71% (1958)

60% (1980)

60% (1996)

58% (1979)

67% (1982)

66% (1947)