10% (1965)

70% (1971)

78% (1987)

68% (1984)

85% (1980)

10% (1972)

70% (1969)

77% (1979)

100% (1973)

0% (1984)

0% (1968)

0% (1982)

0% (1962)

50% (1987)

0% (1988)

80% (1968)

55% (1968)

90% (1988)

50% (1976)

0% (1969)