0% (1977)

0% (1968)

0% (1968)

50% (1971)

62% (1973)

10% (1971)

60% (1983)

0% (1974)

0% (1968)

0% (1969)

0% (1986)

50% (1989)

50% (1970)

0% (1966)

52% (1983)

10% (1984)

0% (1961)

60% (1966)

20% (1985)

35% (1988)