80% (2008)

0% (2007)

70% (2000)

0% (1997)

62% (2005)

0% (1979)

0% (1980)

0% (1988)

70% (1997)

50% (1979)

70% (2006)

90% (2004)

75% (1996)

0% (1979)

0% (2011)

76% (2006)

74% (2014)

0% (1989)

90% (2006)

65% (2012)