asked the Chancellor of the Exchequer if he will estimate the cost of allowing those born before 1 January 1920 and 1 January 1930, respectively, to invest 20 per cent., 25 per cent., and 30 per cent. of their incomes in a self-employed retirement annuity in lieu of the 17½ per cent. allowed in the Finance Act 1980.

I shall let my hon. Friend have a reply as soon as possible.