§ Mr. Rookerasked the Chancellor of the Exchequer whether he will provide information on the net income after income tax, national insurance contributions and 208W child benefit at (a) actual prices and (b) equivalent 1983–84 prices of typical household units (i) single, (ii) a married couple, (iii) a married couple with two children and (iv) a married couple with four children, whose earnings from work are equivalent to the following points on the male earnings distribution: (a) lowest decile, (b) median, and (c) highest decile for each year since 1978–79.