70% (1958)

20% (1986)

0% (1962)

0% (1965)

37% (1990)

20% (1976)

70% (1961)

40% (1971)

65% (1986)

0% (1959)

70% (1960)

0% (1959)

43% (1972)

20% (1971)

30% (1976)

0% (1983)

0% (1972)

0% (1965)

0% (1973)

54% (1988)