50% (1986)

80% (1974)

65% (1984)

73% (1986)

60% (1971)

0% (1959)

60% (1978)

50% (1960)

0% (1974)

60% (1977)

59% (1975)

40% (1975)

50% (1960)

0% (1977)

0% (1962)

0% (1985)

0% (1979)

0% (1985)

0% (1977)

50% (1992)