10% (1996)

25% (2000)

61% (1998)

10% (1996)

50% (1998)

38% (1996)

32% (1998)

34% (1997)

0% (1999)

18% (1996)

40% (1997)

40% (1997)

28% (2000)

25% (1996)

30% (2000)

33% (1997)

0% (1998)

20% (1996)

14% (1996)

40% (1997)