66% (2011)

73% (2011)

69% (2014)

72% (2008)

73% (2013)

71% (2008)

62% (2003)

66% (2013)

75% (2014)

64% (2006)

44% (2002)

38% (2001)

63% (2010)

63% (2003)

67% (2005)

77% (2014)

60% (2009)

60% (2014)

68% (2002)

57% (2007)