73% (2015)

74% (2010)

65% (2017)

61% (2017)

63% (2018)

61% (2013)

73% (2010)

58% (2012)

61% (2011)

70% (2011)

57% (2016)

63% (2016)

67% (2016)

62% (2015)

64% (2018)

71% (2013)

64% (2011)

63% (2010)

59% (2013)

60% (2013)