55% (1957)

57% (1961)

54% (1941)

59% (1961)

53% (1954)

32% (1982)

59% (1956)

46% (1935)

55% (2000)

54% (1957)

47% (1952)

62% (1977)

55% (1941)

58% (1949)

36% (1979)

67% (1974)

55% (1990)

59% (1968)

51% (1997)

50% (1984)