§ Mr. HARRISasked the Minister of Health, what was the number of new dwellings completed in Greater London, K region, during each of the years 1920 to 1925, inclusive, shown under the headings: Dwellings built by local authorities, Dwellings built by trusts and public utility societies, and Dwellings built by private enterprise, not exceeding £30 rateable value, £30 to £70 rateable value, and exceeding £70 rateable value, respectively?