56% (1987)

56% (1988)

69% (2013)

74% (2012)

50% (2015)

50% (1993)

70% (1990)

71% (2010)

62% (1998)

0% (2011)

69% (2005)

78% (2001)

86% (2017)

100% (2012)

83% (2001)

43% (2002)

78% (2008)

78% (2004)

56% (2007)

83% (1989)