70% (1975)

0% (1967)

0% (1957)

0% (1975)

83% (1959)

50% (1970)

0% (1966)

95% (1965)

64% (1969)

10% (1962)

50% (1975)

0% (1965)

65% (1972)

0% (1963)

78% (1975)

50% (1970)

0% (1972)

50% (1969)

40% (1976)

0% (1964)