70% (1952)

47% (1964)

63% (1969)

80% (1952)

53% (1963)

50% (1957)

55% (1962)

58% (1960)

62% (1956)

72% (1965)

65% (1958)

52% (1967)

70% (1954)

35% (1956)

66% (1952)

53% (1950)

40% (1962)

54% (1961)

55% (1963)

50% (1962)