58% (1967)

70% (1968)

40% (1946)

43% (1961)

80% (1955)

68% (1956)

49% (1967)

53% (1965)

10% (1957)

52% (1951)

45% (1981)

52% (1968)

53% (1959)

52% (1961)

34% (1966)

35% (1963)

54% (1969)

50% (1965)

53% (1966)

80% (1963)