§ Mr. Cryerasked the Secretary of State for Trade (1) if he will propose safeguards to ensure that only bona fide central heating firms offer services to the public;
Financial Year Domestic per cent. Commercial Per cent. Industrial Per cent. Other Per cent. 1969–70 … … … … 58 12 7 23 1970–71 … … … … 58 13 7 22 1971–72 … … … … 58 13 8 22 1972–73 … … … … 59 13 8 21 1973–74* … … … … 60 13 10 18 1974–75† … … … … 56 11 12 21 Notes:
* Following 1973 revaluation.
† New County of Northumberland following 1974 reorganisation of local government.