66% (1988)

56% (1988)

40% (1990)

0% (1990)

0% (1992)

50% (1986)

48% (1988)

20% (1991)

48% (1989)

0% (1987)

80% (1994)

0% (1991)

0% (1989)

33% (1986)

20% (1989)

40% (1988)

48% (1994)

51% (1988)

0% (1984)

59% (1994)