69% (1990)

67% (1990)

52% (1989)

67% (1993)

71% (1990)

47% (1990)

70% (1988)

63% (1989)

50% (1989)

37% (1991)

20% (1991)

60% (1993)

50% (1993)

32% (1990)

0% (1989)