40% (2002)

47% (1999)

68% (1996)

18% (1996)

52% (1999)

10% (1996)

32% (2000)

30% (1997)

20% (1996)

33% (1997)

38% (1985)

10% (1998)

10% (1997)

55% (1996)

55% (2000)

30% (1996)

10% (1998)

28% (1998)

39% (1995)

0% (2008)