HC Deb 12 March 1973 vol 852 c238W
Mr. Knox

asked the Secretary of State for Trade and Industry what was the value of the output of the British coal industry in each of the past five years at constant prices.

Mr. Emery

Estimates are as follows:

Total value of output of the deep-mined coal industry at 1967–68 prices
£ million
1967–68 800
1968–69 730
1969–70 680
1970–71 640
1971–72 510