29% (2000)

48% (1999)

35% (1985)

58% (1997)

24% (1997)

40% (2002)

30% (1996)

68% (1996)

43% (1999)

25% (1998)

41% (1985)

39% (1995)

55% (1986)

24% (1996)

37% (1997)

55% (2000)

20% (1996)

30% (1999)

10% (1998)

10% (1996)