54% (1988)

10% (1987)

50% (1985)

20% (1994)

32% (1991)

60% (1987)

52% (1988)

58% (1988)

43% (1985)

50% (1986)

10% (1985)

50% (1989)

47% (1987)

55% (1986)

35% (1986)

10% (1985)

20% (1985)

20% (1983)

45% (1993)

43% (1983)