81% (1985)

77% (1998)

0% (1977)

43% (1990)

15% (1983)

50% (1990)

60% (1984)

60% (2002)

0% (1977)

52% (1985)

64% (1998)

42% (1988)

60% (1985)

0% (1975)

45% (1983)

0% (1975)

50% (1985)

80% (1985)

55% (1988)

0% (1982)