69% (2001)

81% (2005)

59% (2016)

50% (2000)

47% (1997)

79% (2014)

51% (2009)

78% (2015)

79% (2012)

85% (2015)

80% (1997)

63% (2011)

76% (1964)

76% (2015)

78% (1979)

73% (2007)

42% (2000)

71% (2012)

65% (1969)

70% (1984)