20% (2000)

15% (2014)

38% (2016)

10% (2003)

18% (2006)

23% (2007)

12% (2012)

26% (2006)

28% (2013)

15% (2003)

20% (2001)

10% (2012)

30% (2007)

10% (2010)

23% (2007)

60% (2006)

20% (2002)

0% (2006)

10% (2004)

33% (2007)