63% (2001)

65% (1986)

71% (1985)

65% (1986)

58% (1986)

50% (1986)

47% (1988)

63% (1989)

49% (1985)

55% (1989)

50% (1986)

46% (1987)

53% (1985)

50% (1988)

40% (1988)

55% (1987)

48% (1984)

58% (1987)

38% (1985)

58% (1984)