30% (2003)

38% (2006)

10% (2005)

47% (2006)

55% (2006)

0% (2008)

0% (2009)

90% (2003)

30% (2001)

0% (2007)

15% (2003)

0% (2003)

0% (2004)

0% (2007)

30% (2004)

50% (1997)

50% (2011)

35% (2003)

0% (2002)

0% (2004)