54% (1986)

62% (1972)

0% (1970)

0% (1975)

58% (1969)

0% (1978)

71% (1970)

50% (1969)

79% (1981)

52% (1972)

50% (1964)

50% (1971)

0% (1968)

0% (1972)

0% (1973)

78% (1988)

55% (1975)

0% (1968)

0% (1987)

60% (1972)