70% (1999)

70% (2002)

50% (1997)

100% (2006)

59% (2011)

0% (1980)

77% (2006)

0% (2010)

0% (1998)

0% (2010)

0% (2008)

0% (2009)

70% (1994)

0% (2013)

73% (1977)

0% (2000)

20% (1980)

0% (2000)

70% (2013)

0% (2005)