32% (2009)

55% (2008)

0% (2009)

10% (2005)

32% (2006)

0% (2009)

10% (2006)

40% (2004)

10% (2006)

50% (2005)

30% (2006)

30% (2004)

20% (2008)

44% (2001)

38% (2000)

65% (2003)

10% (2002)

10% (2007)

10% (2009)

100% (2002)