54% (1954)

63% (1966)

54% (1989)

73% (1964)

66% (1976)

55% (1978)

62% (1963)

59% (2000)

62% (1934)

69% (1937)

59% (1963)

66% (1964)

70% (1939)

70% (1937)

58% (1943)

47% (1965)

62% (1971)

46% (1988)

54% (1983)

59% (1955)