35% (1957)

61% (1940)

55% (1950)

59% (1963)

59% (1974)

72% (1956)

56% (1954)

56% (1929)

40% (1952)

58% (1966)

41% (1982)

53% (1940)

62% (1963)

55% (1966)

62% (1934)

59% (1951)

55% (1998)

54% (1975)

61% (1980)

52% (1949)