62% (2003)

71% (2004)

68% (2003)

72% (2001)

73% (2005)

65% (2004)

64% (2005)

68% (2005)

71% (2005)

63% (2002)

56% (2005)

60% (2002)

44% (2002)

66% (2002)

49% (2005)

65% (2004)

50% (2001)

51% (2004)

58% (2003)

23% (2003)