54% (1986)

0% (1970)

0% (1975)

52% (1972)

50% (1971)

62% (1972)

58% (1969)

0% (1972)

78% (1988)

50% (1964)

0% (1974)

20% (1974)

58% (1968)

0% (1968)

71% (1970)

50% (1962)

60% (1972)

0% (1978)

0% (1973)

0% (1987)