42% (2002)

34% (1999)

27% (2002)

20% (2002)

40% (2003)

10% (2003)

20% (2003)

27% (2002)

30% (2001)

0% (2003)

20% (2002)

15% (2002)

70% (1998)

0% (2003)

60% (1998)

75% (1998)

20% (2001)

0% (2002)

27% (2001)

40% (2001)