60% (1999)

65% (1989)

73% (1989)

63% (1998)

42% (1996)

0% (1988)

57% (1996)

52% (1989)

62% (1989)

50% (2000)

55% (1995)

50% (1998)

51% (1989)

68% (1994)

10% (1989)

70% (1994)

0% (1992)

50% (1993)

52% (1992)

63% (1989)