§ Mr. de Freitasasked the Chancellor of the Exchequer whether he is aware that, taking the internal purchasing value of the £ sterling at 20s. in October, 1951, it had declined to 19s. in May, 1952, 18s. 3d. in May, 1954, and 16s. 5d. in May, 1956; and what is the comparable figure for May, 1958.