57% (2006)

74% (2001)

64% (2002)

25% (2006)

53% (2005)

60% (2000)

81% (1998)

0% (2005)

58% (1999)

73% (1998)

42% (1999)

52% (2004)

48% (2006)

58% (2004)

67% (1997)

48% (1998)

90% (1995)

56% (1997)

0% (1999)

46% (2001)