69% (1986)

63% (1986)

55% (1985)

62% (1986)

66% (1984)

73% (1983)

65% (1983)

67% (1985)

47% (1985)

49% (1985)

45% (1984)

57% (1985)

46% (1983)

0% (1983)

80% (1985)

50% (1984)