44% (1990)

45% (1989)

54% (1986)

56% (1988)

33% (1987)

38% (1992)

56% (1988)

52% (1987)

43% (1986)

0% (1990)

53% (1987)

40% (1987)

57% (1989)

71% (1988)

65% (1988)

54% (1986)

54% (1991)

58% (1987)

60% (1990)

33% (1986)