38% (1972)

56% (1981)

77% (1979)

37% (2001)

45% (2015)

61% (1985)

60% (1989)

68% (2009)

50% (1983)

83% (2013)

79% (2006)

88% (1996)

0% (2012)

79% (2002)

50% (2008)

76% (2013)

85% (2011)

56% (2001)

0% (2003)

0% (2003)