73% (1989)

38% (1989)

38% (1991)

43% (1986)

43% (1988)

0% (1987)

0% (1992)

37% (1987)

59% (1994)

57% (1989)

51% (1988)

58% (1989)

48% (1987)

0% (1991)

51% (1988)

59% (1989)

51% (1987)

40% (1992)

0% (1987)

33% (1988)