65% (2011)

72% (2008)

68% (2014)

66% (2013)

72% (2011)

72% (2008)

64% (2006)

73% (2013)

60% (2009)

61% (2010)

43% (2002)

62% (2003)

50% (2011)

74% (2014)

76% (2014)

61% (2003)

55% (2014)

42% (2004)

38% (2001)

44% (2006)