69% (2004)

68% (2015)

74% (2012)

69% (2009)

64% (2007)

52% (2006)

70% (2013)

65% (2010)

59% (2012)

59% (2012)

63% (2006)

70% (2009)

78% (2006)

64% (2004)

69% (2008)

60% (2006)

56% (2007)

70% (2013)

54% (2008)

65% (2006)