48% (1961)

49% (1962)

72% (1958)

61% (1973)

66% (2004)

54% (1946)

67% (1960)

36% (1965)

67% (1957)

53% (1959)

20% (1960)

50% (1962)

50% (1964)

65% (1963)

56% (1959)

58% (1972)

40% (1962)

62% (1957)

43% (1967)

0% (1964)