83% (1985)

67% (1975)

72% (1974)

0% (1975)

0% (1989)

50% (1960)

100% (1947)

0% (1988)

56% (1987)

0% (1973)

47% (1975)

95% (1976)

60% (1991)

70% (1977)

50% (1971)

50% (1983)

34% (1979)

55% (1979)

0% (1972)

61% (1977)