39% (1998)

43% (1989)

20% (1989)

18% (2000)

41% (1994)

0% (1999)

14% (1996)

10% (1998)

22% (1996)

26% (1994)

16% (1997)

22% (1992)

23% (1993)

20% (1995)

37% (1988)

27% (1994)

42% (1997)

10% (2000)

40% (1990)

0% (2001)