71% (2005)

63% (2004)

62% (2003)

73% (2005)

64% (2002)

68% (2005)

61% (2002)

49% (2005)

47% (2001)

67% (2006)

71% (2005)

63% (2001)

57% (2001)

45% (2004)

58% (2005)

43% (2002)

59% (2001)

61% (2002)

54% (2002)

58% (2002)