65% (1986)

71% (1985)

63% (2001)

59% (1984)

51% (1986)

50% (1985)

65% (1986)

47% (1988)

57% (1986)

45% (1987)

53% (1986)

63% (1989)

48% (1988)

52% (1989)

55% (1987)

50% (1986)

56% (1989)

58% (1987)

40% (1986)

48% (1988)