10% (1965)

0% (1984)

100% (1973)

0% (1988)

85% (1980)

0% (1982)

70% (1969)

70% (1984)

50% (1986)

70% (1971)

90% (1988)

80% (1968)

68% (1984)

50% (1987)

60% (1979)

64% (1987)

50% (1976)

0% (1962)

10% (1978)

0% (1969)