64% (2010)

74% (2006)

56% (2013)

57% (2013)

54% (2009)

50% (2010)

55% (2011)

55% (2009)

68% (2012)

71% (2010)

65% (2004)

59% (2010)

66% (2002)

50% (2006)

50% (2009)

57% (2012)

17% (2007)