40% (2001)

73% (2005)

52% (2000)

68% (1998)

47% (2001)

0% (2001)

10% (1998)

40% (2000)

55% (1997)

76% (1997)

50% (2001)

0% (1999)

65% (2003)

0% (2003)

87% (2000)

60% (1998)

80% (2001)

40% (2000)

0% (1999)

60% (2002)