75% (1961)

56% (1972)

69% (1937)

66% (1978)

73% (1960)

67% (1980)

70% (1973)

69% (1920)

64% (1967)

70% (2005)

72% (1956)

70% (1939)

50% (1956)

55% (1996)

69% (1943)

62% (1957)

65% (1964)

68% (1954)

74% (1955)

57% (1994)