70% (2006)

72% (2003)

58% (2003)

67% (2002)

72% (2004)

45% (2005)

60% (2005)

71% (2004)

70% (2008)

56% (2007)

68% (2002)

65% (2003)

68% (2008)

59% (2002)

60% (2003)

42% (2006)

76% (2004)

62% (2005)

62% (2002)

52% (2007)