53% (1993)

31% (1990)

38% (1992)

68% (2017)

36% (1991)

58% (1991)

58% (1993)

51% (1988)

65% (1984)

57% (1992)

37% (1987)

33% (1992)

27% (1989)

25% (1984)

35% (1988)

50% (1988)

45% (1984)