72% (2001)

67% (2001)

74% (2010)

46% (1989)

67% (2001)

77% (2000)

71% (2001)

77% (1999)

58% (1999)

72% (2000)

62% (2001)

49% (1987)

76% (2003)

83% (2008)

66% (1999)

62% (1990)

70% (1992)

67% (2005)

57% (2003)

47% (2001)