27% (2002)

15% (2002)

34% (1999)

10% (2003)

20% (2002)

20% (2001)

42% (2002)

20% (2003)

27% (2001)

20% (2001)

15% (2001)

30% (2001)

0% (1999)

75% (1998)

40% (2003)

0% (2002)

50% (2003)

27% (2002)

0% (2003)

30% (2001)