30% (1995)

52% (1997)

43% (1999)

40% (2010)

20% (2000)

30% (1999)

0% (1995)

33% (2000)

28% (2007)

31% (2000)

33% (2001)

29% (2007)

0% (1995)

0% (1997)

25% (2000)

10% (2004)

0% (1995)

40% (1997)

0% (2000)

10% (2004)