68% (1990)

66% (1990)

47% (1990)

63% (1989)

67% (1993)

60% (1993)

52% (1989)

70% (1988)

71% (1990)

50% (1989)

32% (1990)

37% (1991)

50% (1993)

0% (1989)

20% (1991)