0% (2007)

0% (2011)

20% (2010)

43% (2004)

10% (2008)

20% (2007)

30% (2007)

0% (2009)

10% (2006)

0% (2007)

32% (2009)

20% (2009)

0% (2007)

0% (2009)

20% (2009)

45% (2006)

30% (2004)

10% (2007)

20% (2004)

50% (2011)