33% (2001)

20% (1992)

40% (2010)

52% (1997)

30% (1999)

28% (2007)

31% (2000)

33% (2000)

43% (1999)

20% (2000)

30% (1995)

0% (1995)

29% (2007)

24% (2000)

0% (1995)

0% (1997)

40% (1997)

0% (1995)

0% (2000)

10% (2004)