asked the Secretary of State for the Environment if he will set out the average increase in water prices for the domestic user in real terms for each of the last six years, in each of the English water authorities.
Increases in average household bills for unmeasured consumers, deflated by RPI, for the past six years are as follows:
|* Estimated average rate bills have been inflated to 1986–87 prices by using the retail prices index for April of each year.|
|† Figures up to 1973–74 are not comparable with those for 1974–75 and later years. This is due to the change in local authorities' responsibilities in 1974, in particular the transfer of water and sewerage services from local authorities to water authorities.|