To ask the Chancellor of the Exchequer if he will estimate the amount of the public sector pensions payable in each of the next 20 years assuming annual inflation of (a) 2 per cent., (b) 4 per cent. and (c) 6 per cent. and in respect of the next three years the proportion that such pensions are as a percentage of forecast gross domestic product.

The data requested could be provided only at disproportionate cost.