65% (1996)

63% (1997)

47% (1998)

65% (1996)

60% (1996)

64% (1998)

57% (1998)

60% (1999)

62% (1998)

68% (1998)

58% (1998)

54% (1999)

61% (1998)

50% (1998)

48% (1998)

53% (2000)

50% (1996)

33% (1998)

58% (2000)

65% (1999)