56% (2002)

37% (1998)

45% (2008)

70% (1998)

55% (1997)

52% (1985)

20% (1997)

55% (1998)

41% (2002)

33% (1997)

40% (2008)

0% (2003)

0% (2000)

0% (2004)

80% (2000)