HC Deb 29 January 1974 vol 868 c83W
Mr. Grylls

asked the Minister for Energy what was the average net manpower loss per week in the coal mining industry in November 1969 and in November 1973.

Mr. Emery

The average net manpower loss per week by the National Coal Board in November 1969 was 340. In November 1973 the corresponding figure was 589.