52% (1986)

58% (1992)

53% (1992)

38% (1992)

48% (1989)

59% (1993)

0% (1994)

0% (1993)

38% (1992)

10% (1992)

50% (1991)

0% (1993)

54% (1994)

0% (1994)

57% (1994)

0% (1992)

0% (1991)

0% (1991)

90% (1992)

0% (1994)