57% (1976)

70% (1982)

57% (1970)

38% (1986)

80% (1967)

0% (1986)

37% (1973)

80% (1985)

45% (1972)

47% (1978)

70% (1977)

70% (1976)

62% (1978)

80% (1978)

63% (1969)

0% (1984)

0% (1984)

0% (1992)

0% (1986)

0% (1974)