62% (1993)

86% (2004)

82% (1983)

97% (2001)

83% (1995)

0% (2003)

58% (1985)

69% (1996)

74% (2011)

90% (2010)

82% (2002)

72% (1998)

0% (2012)

72% (2009)

92% (2008)

97% (1994)

83% (2004)

75% (2007)

83% (1994)

78% (2012)