asked the Secretary of State for Trade if he will list in the Official Report the percentage increase by volume in 1975 over 1974 of imports of cars, commercial vehicles, textiles, footwear, steel, aircraft—including spares—ships, machine tools, computers, office equipment and chemicals.

Index numbers of the volume of imports are not compiled for all the headings listed, but percentage changes are given based on the index numbers where available. For some headings the changes are based on units of quantity where practicable, but because of the variety of goods within each heading and changes in the nature of the goods—quality, size, etc.—between the two years, the percentage changes shown should be used and interpreted with care. For other headings changes in value have been used.