asked the Secretary of State for Trade how many tons of coal were, respectively, exported from and imported to the United Kingdom for each of the past four years.

The published figures show that in the years 1971 to 1974 exports were 2·7, 1·7, 2·7 and 1·9 million metric tons, and imports were 4·2, 5·0, 1·7 and 3·5 million metric tons, respectively.