46% (1990)

44% (1997)

62% (1998)

47% (1993)

60% (1998)

52% (1996)

30% (1990)

54% (1998)

56% (1993)

65% (2001)

30% (1993)

44% (1992)

47% (1989)

33% (1992)

0% (1998)

0% (1995)

30% (1996)

15% (1993)

43% (1994)

73% (1995)