68% (2013)

72% (2011)

83% (2018)

64% (2007)

61% (2009)

60% (2011)

81% (2010)

64% (2009)

63% (2013)

55% (2012)

55% (2011)

74% (2009)

59% (2011)

60% (2009)

72% (2011)

66% (2007)

62% (2012)

60% (2013)

64% (2015)

54% (2007)