10% (1965)

70% (1984)

77% (1979)

100% (1973)

0% (1988)

0% (1962)

20% (1987)

0% (1975)

0% (1967)

78% (1987)

0% (1969)

80% (1968)

0% (1984)

80% (1974)

50% (1987)

50% (1978)

85% (1980)

70% (1971)

68% (1984)

10% (1972)