§ Mr. Wrigglesworthasked the Chancellor of the Exchequer if he will estimate the level of income in current prices and expressed as a percentage of national average earnings above which single people, married couples and married couples with two children in each case in 1983–84 and 1984–85 pay less income tax and national insurance contributions and less child benefit where applicable, as a total sum of money in constant prices and as a proportion of gross earnings than they did in 1978–79, using for 1984–85 the assumptions contained in the Red Book forecast; and if he will express his answer in the manner required of the answer on 28 March 1982, official Report, column 68.