66% (2011)

69% (2014)

73% (2011)

72% (2008)

64% (2006)

66% (2013)

60% (2009)

71% (2008)

62% (2003)

73% (2013)

38% (2001)

57% (2007)

75% (2014)

46% (2006)

51% (2011)

67% (2005)

70% (2009)

66% (2012)

63% (2003)

77% (2014)