HC Deb 23 May 1978 vol 950 c493W
Mr. George Grant

asked the Secretary of State for Energy what is the present

AVERAGE OUTPUT PER MANSHIFT
4 weeks ended
6th May 1978 7th May 1977
tonnes cwts. tonnes cwts.
Overall … … … 2.33 45.9 2.28 44.9
Face … … … … 8.71 171.4 8.00 157.5