60% (2003)

65% (1999)

71% (2002)

69% (2000)

76% (2002)

68% (2000)

62% (2001)

43% (2004)

62% (2003)

41% (2001)

62% (1999)

56% (1999)

57% (2002)

73% (2002)

58% (2001)

49% (2000)

67% (2000)

52% (2001)

61% (2002)

55% (2001)