38% (2005)

47% (2005)

0% (2004)

80% (2011)

60% (2004)

0% (2007)

71% (2008)

80% (2010)

40% (2005)

0% (2011)

89% (2010)

90% (2008)

0% (2006)

0% (2001)

0% (2005)

0% (1999)

0% (2003)