69% (2013)

72% (2011)

83% (2018)

81% (2010)

65% (2007)

61% (2009)

63% (2013)

55% (2012)

64% (2009)

60% (2011)

73% (2009)

66% (2007)

72% (2011)

60% (2013)

54% (2007)

55% (2006)

54% (2009)

69% (2007)

60% (2011)

59% (2011)