18% (1999)

10% (2004)

35% (2010)

29% (2008)

20% (2001)

29% (2007)

35% (2002)

45% (2002)

22% (2003)

30% (2014)

27% (2003)

0% (2005)

32% (2013)

45% (2006)

63% (2001)

45% (2001)

20% (2007)

0% (2003)

26% (2006)

66% (2006)