82% (1985)

77% (1998)

60% (2002)

0% (1979)

15% (1983)

52% (1985)

43% (1990)

55% (1988)

65% (1998)

60% (1985)

0% (1977)

45% (1983)

50% (1990)

50% (1985)

60% (1984)

80% (1985)

0% (1982)

0% (1988)

42% (1988)

60% (1984)