73% (2010)

66% (2001)

70% (1992)

71% (2001)

71% (2001)

70% (2005)

76% (1999)

71% (2001)

66% (2005)

68% (2004)

77% (2000)

62% (2001)

68% (2007)

68% (2001)

55% (2003)

68% (1999)

74% (2005)

42% (2005)

66% (1995)

79% (2004)