0% (1980)

50% (1975)

0% (1976)

20% (1978)

20% (1991)

0% (1987)

40% (1980)

0% (1976)

70% (1974)

0% (1985)

0% (1983)

43% (1984)

0% (1976)

60% (1985)

50% (1980)

0% (1966)

0% (1971)

70% (1986)

0% (1979)

0% (1984)