62% (2003)

71% (2004)

68% (2003)

65% (2004)

68% (2005)

64% (2005)

73% (2005)

72% (2001)

71% (2005)

63% (2002)

43% (2002)

50% (2005)

65% (2003)

65% (2004)

59% (2002)

56% (2005)

66% (2002)

51% (2001)

51% (2004)

58% (2003)