60% (1994)

73% (1988)

83% (1989)

0% (1996)

68% (1993)

62% (1989)

55% (1991)

70% (1994)

0% (1992)

70% (1992)

35% (1995)

65% (1985)

66% (1992)

65% (1989)

50% (1989)

0% (1991)

50% (1999)

48% (1988)

70% (1986)

75% (1998)