80% (1986)

0% (1986)

0% (1980)

80% (1976)

40% (1977)

0% (1973)

60% (1980)

55% (1984)

0% (1972)

0% (1967)

0% (1975)

80% (1983)

0% (1974)

0% (1984)

80% (1970)

0% (1977)

37% (1979)

0% (1987)

0% (1970)

80% (1985)