0% (1972)

60% (1988)

20% (1981)

60% (1960)

30% (1951)

50% (1964)

60% (1971)

0% (1970)

0% (1957)

50% (1988)

50% (1968)

50% (1960)

0% (1947)

80% (1967)

60% (1979)

60% (1968)

20% (1973)

30% (1971)

80% (1972)

20% (1985)