46% (2005)

38% (2005)

0% (2004)

80% (2011)

0% (2011)

80% (2010)

90% (2008)

71% (2008)

60% (2004)

0% (2007)

89% (2010)

40% (2005)

0% (2001)

0% (2006)

0% (2005)

0% (2003)

0% (1999)