45% (2002)

27% (2001)

70% (1999)

50% (1998)

60% (1999)

62% (1999)

34% (2000)

61% (1999)

52% (2003)

30% (2002)

65% (2000)

55% (2001)

50% (2001)

0% (2000)

66% (2002)

69% (2000)

72% (2002)

28% (2002)

40% (2000)

60% (1999)