82% (2004)

69% (2009)

63% (2014)

62% (2011)

70% (2015)

29% (2010)

78% (2015)

76% (2016)

48% (2015)

0% (1966)

76% (2001)

57% (2006)

76% (1994)

73% (2000)

74% (2002)

65% (2017)

79% (1995)

71% (1985)

72% (2002)

67% (1999)