73% (2010)

71% (1992)

71% (2001)

66% (2001)

66% (1999)

77% (2000)

66% (2005)

73% (2000)

47% (2001)

77% (1999)

62% (2001)

42% (1989)

71% (2001)

76% (2005)

70% (2008)

70% (2005)

62% (1990)

71% (2001)

56% (2003)

68% (2001)