52% (1985)

45% (2008)

20% (1997)

56% (2002)

70% (1998)

50% (1997)

55% (1998)

37% (1998)

87% (2000)

0% (2004)

0% (2000)

33% (1997)

41% (2002)

40% (2008)

0% (2003)