52% (2001)

66% (2001)

73% (1999)

57% (2000)

33% (2000)

58% (2004)

59% (2001)

64% (2000)

67% (2006)

63% (2001)

52% (2000)

70% (2007)

51% (2002)

58% (2002)

43% (2002)

38% (2002)

58% (2004)

49% (2005)

61% (2001)

58% (1999)