45% (2002)

0% (2010)

28% (2006)

19% (2008)

0% (2007)

20% (2006)

38% (2000)

40% (2008)

0% (2004)

30% (2002)

50% (2000)

42% (2011)

50% (2006)

0% (2003)

20% (2007)

0% (2003)

0% (2005)

15% (2004)

29% (2008)

57% (2005)