66% (1979)

68% (1996)

40% (2002)

47% (1999)

58% (1997)

10% (1996)

30% (1998)

39% (1995)

52% (1999)

30% (1997)

38% (1985)

24% (1997)

0% (1995)

18% (1996)

30% (1997)

20% (1996)

30% (1999)

35% (2000)

10% (1998)

0% (2008)