53% (2002)

63% (2004)

49% (2005)

71% (2003)

53% (2004)

53% (2001)

29% (2004)

53% (2002)

38% (2002)

58% (2002)

62% (2004)

48% (2002)

66% (2001)

55% (2007)

55% (2002)

48% (2002)

56% (2002)

57% (2001)

61% (2003)

55% (2004)