Great idea for a quiz. Little fix - When we was fab was from 1988 not 1968 (when admittedly they were fab). Also, would you accept just Bangladesh as an answer?
Dark Horse was released in November 1974, peaked at #15 in January 1975, not 1979. Blow Away was released in February 1979, peaked at #16 in May 1979, not 1977. Crackerbox Palace was released in January 1977, peaked at #19 in March 1977, not 1975.