65% (2000)

55% (2007)

65% (2003)

50% (2000)

66% (2001)

57% (2004)

59% (2001)

58% (2000)

64% (2001)

60% (2004)

52% (1998)

60% (2003)

62% (2000)

74% (2006)

55% (2001)

57% (1998)

68% (2004)

68% (2005)