30% (2006)

67% (2006)

35% (2003)

10% (2005)

0% (2009)

55% (2001)

15% (2003)

40% (2004)

44% (2006)

40% (2001)

25% (2005)

20% (2006)

47% (2006)

50% (2003)

0% (2009)

55% (2008)

20% (2013)

34% (2002)

38% (2000)

32% (2009)