63% (2004)

71% (1999)

70% (1999)

57% (1999)

62% (2006)

66% (1997)

72% (1998)

64% (2001)

67% (1998)

64% (1998)

62% (2003)

69% (1999)

41% (1997)

76% (2002)

20% (1990)

62% (1997)

66% (1991)

70% (2001)

67% (1997)

52% (2011)