asked the Minister of Pensions and National Insurance if he is aware that since April, 1955, the date when retirement pensions were last adjusted, the purchasing power of these pensions has been reduced by 2s. 6d. per week for a single person and that for the same period the average worker in industry has received an increase of 3s. 6d. per week; and whether he will, therefore, increase the present retirement pension by 6s., 3s. 6d. or 2s. 6d. per week.