10% (2002)

32% (2006)

42% (2002)

37% (2003)

30% (2002)

43% (2001)

25% (2000)

46% (2009)

10% (2011)

48% (2000)

30% (2008)

10% (2002)

33% (2004)

24% (2005)

26% (2006)

26% (2003)

45% (2000)

36% (2005)

28% (2000)

29% (2002)