69% (2011)

85% (2011)

75% (2009)

73% (1998)

81% (1992)

68% (2012)

57% (1992)

72% (1993)

51% (1998)

82% (2005)

62% (2010)

74% (2011)

72% (2018)

71% (2018)

76% (1984)

75% (1988)

45% (1999)

90% (2003)

66% (2000)

50% (2001)