52% (1968)

64% (1963)

50% (1953)

58% (1965)

58% (1958)

72% (1955)

0% (1965)

50% (1970)

54% (1969)

61% (1959)

53% (1965)

70% (1968)

74% (1961)

48% (1965)

63% (1967)

50% (1953)

53% (1959)

49% (1960)

34% (1966)

60% (1972)