67% (1990)

58% (1989)

58% (1990)

58% (1993)

60% (1989)

60% (1989)

54% (1990)

56% (1987)

59% (1988)

33% (1988)

46% (1987)

50% (1989)

62% (1988)

38% (1992)

0% (1990)

56% (1988)

55% (1993)

52% (1988)

51% (1987)

48% (1988)