67% (1979)

63% (1979)

60% (1976)

63% (1974)

50% (1976)

55% (1977)

66% (1963)

46% (1977)

52% (1979)

66% (1963)

59% (1972)

63% (1978)

72% (1965)

52% (1963)

47% (1972)

46% (1962)

68% (1977)

67% (1970)

49% (1977)

67% (1973)