57% (2003)

52% (2001)

73% (1999)

66% (2001)

57% (2000)

59% (2004)

52% (2000)

40% (2003)

33% (2000)

64% (2001)

62% (2004)

52% (2002)

49% (2005)

44% (2002)

59% (2001)

38% (2002)

55% (2002)

58% (2002)

58% (2004)

67% (2006)