65% (2000)

59% (2001)

55% (2007)

65% (2003)

57% (2004)

66% (2001)

50% (2000)

60% (2003)

62% (2000)

64% (2001)

74% (2006)

57% (1998)

52% (1998)

68% (2004)

55% (2001)

68% (2005)

58% (2000)

60% (2004)