HC Deb 06 August 1980 vol 990 c157W
Mr. Ralph Howell

asked the Chancellor of the Exchequer if he will revalue at 1980 prices his estimates of output lost on account of unemployment, given in reply to the hon. Member for Carshalton (Mr. Forman) Official Report, 14 July, c. 416.

Mr. Biffen

The estimates of output given in reply to my hon. Friend the Member for Carshalton (Mr. Forman) on 14 July cannot yet be revalued to 1980 prices. The usual practice is for the base year for the constant price national accounts to be changed every five years, three years after the new base year.