50% (1982)

60% (1980)

60% (1989)

51% (1986)

52% (1986)

40% (1982)

37% (1984)

50% (1988)

40% (2002)

28% (1987)

30% (1991)

48% (1989)

0% (1985)

80% (1983)

28% (1988)

43% (1988)

50% (1986)

50% (1983)

40% (2000)

0% (1987)