74% (1963)

60% (1965)

61% (1958)

67% (1969)

58% (1964)

70% (1955)

56% (1960)

10% (1960)

59% (1956)

55% (1962)

50% (1970)

33% (1955)

62% (1967)

61% (1961)

20% (1961)

30% (1958)

10% (1963)

10% (1965)

80% (1958)