68% (2015)

73% (2015)

68% (2004)

59% (2008)

70% (2014)

69% (1998)

58% (2011)

50% (2000)

67% (2012)

61% (2000)

57% (2003)

64% (2000)

74% (2003)

56% (2013)

72% (2014)

65% (2009)

50% (2010)

58% (2009)

65% (2003)

55% (2012)