61% (1989)

57% (1992)

90% (1994)

75% (1993)

55% (1986)

60% (1988)

100% (1993)

56% (1998)

45% (1990)

50% (1994)

0% (1992)

53% (1997)

73% (1985)

47% (1984)

38% (1996)

0% (1997)

0% (1987)

59% (1986)

35% (1988)

60% (1988)