0% (1989)

60% (1972)

0% (1976)

62% (1968)

82% (1974)

0% (1970)

65% (1987)

58% (1985)

0% (1970)

58% (1987)

59% (1976)

60% (1989)

27% (1986)

65% (1980)

49% (1978)

90% (1972)

80% (1985)

40% (1978)

60% (1984)

52% (1984)