73% (2003)

74% (2000)

79% (2000)

66% (2002)

58% (2003)

61% (2001)

66% (2003)

50% (2001)

52% (1999)

56% (2002)

61% (2002)

65% (1999)

60% (2002)

61% (2004)

60% (1999)

53% (2003)

63% (2003)

65% (2001)

69% (2000)

66% (1999)