68% (2013)

83% (2018)

72% (2011)

64% (2015)

59% (2010)

63% (2009)

64% (2007)

69% (2007)

55% (2011)

60% (2016)

61% (2009)

66% (2021)

55% (2012)

61% (2011)

73% (2009)

65% (2009)

72% (2011)

67% (2009)

59% (2011)

59% (2010)