66% (1991)

72% (1986)

75% (1982)

0% (1989)

60% (1984)

0% (1992)

0% (1987)

55% (1988)

42% (1992)

40% (1988)

0% (1984)

40% (1992)

60% (1985)

50% (1990)

20% (1987)

63% (1987)

0% (1986)

68% (1988)

0% (1986)

72% (1989)