66% (2011)

73% (2011)

72% (2008)

69% (2014)

66% (2013)

73% (2013)

71% (2008)

67% (2005)

63% (2010)

63% (2003)

75% (2014)

62% (2003)

64% (2006)

38% (2001)

77% (2014)

44% (2002)

46% (2006)

72% (2011)

60% (2009)

66% (2012)