50% (1988)

30% (1990)

28% (1989)

59% (1991)

65% (1984)

54% (1993)

33% (1992)

68% (2017)

38% (1992)

37% (1987)

38% (1991)

45% (1984)

57% (1992)

58% (1993)

35% (1988)

25% (1984)

50% (1988)