76% (2002)

62% (2001)

65% (1999)

68% (2000)

43% (2004)

71% (2002)

56% (2002)

49% (2000)

69% (2000)

60% (2003)

62% (2003)

41% (2001)

65% (2002)

58% (2001)

61% (2002)

72% (2002)

53% (2001)

28% (2002)

67% (2000)

72% (2002)