64% (1971)

10% (1965)

18% (1972)

0% (1960)

0% (1958)

0% (1978)

0% (1969)

85% (1980)

0% (1959)

0% (1983)

90% (1961)

80% (1976)

64% (1987)

50% (1987)

70% (1971)

93% (1977)

50% (1976)

100% (1966)

0% (1974)

0% (1973)