38% (1985)

63% (2001)

71% (1985)

51% (1986)

65% (1986)

63% (1989)

50% (1985)

59% (1984)

57% (1987)

56% (1989)

48% (1988)

55% (1987)

48% (1984)

47% (1988)

65% (1986)

57% (1986)

53% (1986)

45% (1987)

48% (1986)

50% (1986)