55% (1982)

56% (1984)

63% (1955)

59% (1971)

63% (1953)

60% (1955)

54% (1979)

65% (1975)

59% (2002)

65% (1931)

50% (1957)

70% (1943)

71% (1964)

67% (1947)

43% (1952)

44% (1978)

45% (1982)

55% (1958)

59% (1959)

49% (1976)