38% (1995)

27% (1994)

23% (1996)

51% (1997)

35% (1996)

38% (1994)

60% (1999)

32% (1992)

49% (1996)

40% (1996)

43% (2000)

40% (1996)

55% (1995)

49% (1995)

47% (1995)

50% (1994)

39% (1995)

42% (1997)

10% (1995)

45% (1993)