47% (1999)

48% (1997)

33% (1998)

50% (1999)

79% (1997)

20% (1999)

35% (1997)

53% (1997)

46% (1998)

46% (1997)

51% (1996)

58% (1998)

60% (1999)

38% (1998)

47% (1998)

10% (1997)

64% (1998)

54% (1997)

39% (1997)

15% (1995)