asked the Chancellor of the Exchequer if he will publish in the Official Report a table showing the annual rate of increase in labour productivity in the nationalised industries compared with non-manufacturing excluding the public sector in (a) 1963 to 1973, (b) 1973 to May 1979 and (c) May 1979 to the latest available date; and if he will provide figures to show to what extent any difference in performance has been reflected in earnings.

Index numbers of labour productivity are published in the Monthly Digest of Statistics for the economy as a whole and for the major index of production industries. Statistics for productivity and for earnings are not compiled for the two categories specified in the question.