0% (1991)

44% (1987)

73% (1989)

51% (1988)

71% (1988)

58% (1996)

0% (1990)

33% (1988)

70% (1987)

20% (1991)

54% (1986)

40% (1989)

54% (1988)

0% (1988)

69% (1990)

33% (1986)

62% (1988)

58% (1993)

41% (1986)

45% (1988)