82% (2006)

80% (2005)

87% (1988)

80% (1982)

73% (2003)

77% (2010)

62% (2013)

91% (1998)

65% (1990)

68% (2006)

66% (2008)

47% (2006)

50% (2015)

62% (2007)

64% (2014)

62% (1991)

97% (2008)

50% (2004)

0% (2007)

0% (1989)