69% (1941)

54% (1994)

50% (1989)

57% (1937)

52% (1979)

56% (1966)

53% (1991)

62% (1950)

65% (1955)

66% (1947)

70% (1949)

70% (1932)

59% (1982)

68% (1953)

61% (1937)

72% (1949)

49% (1987)

66% (1983)

61% (1956)

62% (1974)