48% (1976)

39% (2001)

61% (1986)

49% (2003)

80% (1999)

79% (1999)

0% (2010)

66% (1996)

66% (2008)

78% (1998)

71% (2007)

0% (2012)

71% (2015)

0% (1976)

37% (1980)

66% (1994)

0% (1970)

0% (1981)

50% (2007)

77% (2002)