63% (2018)

73% (2015)

65% (2017)

74% (2010)

63% (2016)

61% (2017)

50% (2012)

64% (2011)

53% (2017)

62% (2016)

58% (2012)

59% (2013)

63% (2010)

56% (2017)

73% (2010)

70% (2011)

57% (2016)

67% (2016)

61% (2011)

63% (2015)