65% (2009)

56% (2010)

52% (2009)

59% (2009)

59% (2014)

65% (2008)

67% (2008)

59% (2012)

66% (2007)

57% (2013)

60% (2010)

59% (2009)

68% (2013)

54% (2010)

73% (2013)

60% (2011)

55% (2009)

57% (2011)

68% (2009)

70% (2007)