66% (2011)

73% (2011)

66% (2013)

69% (2014)

73% (2013)

72% (2008)

71% (2008)

75% (2014)

62% (2003)

64% (2006)

60% (2009)

67% (2005)

63% (2010)

38% (2001)

68% (2002)

63% (2003)

77% (2014)

72% (2011)

56% (2014)

44% (2002)