65% (2001)

56% (2003)

73% (1999)

51% (2001)

69% (2006)

40% (2003)

57% (2000)

52% (2000)

33% (2000)

53% (2003)

51% (2002)

49% (2005)

67% (1999)

57% (1999)

54% (2000)

67% (2006)

58% (2001)

44% (2002)

46% (2005)

57% (2004)