70% (2012)

65% (2010)

48% (2009)

69% (2008)

63% (2009)

68% (2009)

77% (2010)

70% (2004)

82% (2012)

80% (2006)

58% (2006)

85% (2006)

68% (2010)

78% (2012)

76% (2005)

65% (2009)

44% (2006)

62% (2003)

68% (2009)

67% (2010)