48% (1997)

33% (2001)

37% (2010)

0% (1995)

30% (1999)

33% (2000)

31% (2007)

0% (2000)

32% (2007)

46% (1999)

0% (1997)

0% (1995)

31% (2000)

10% (1995)

0% (2004)

10% (2004)

28% (2000)

0% (2000)

40% (1997)