77% (2005)

63% (2006)

68% (2010)

74% (2008)

66% (2002)

68% (2004)

68% (2004)

64% (2010)

64% (2006)

59% (2004)

67% (2006)

62% (2004)

62% (2005)

42% (2009)

62% (2008)

74% (2011)

74% (2007)

80% (2011)

55% (2006)

58% (2006)