The information requested falls within the responsibility of the UK Statistics Authority. I have asked the authority to reply.
Letter from Stephen Penneck, dated March 2010:
As Director General for the Office for National Statistics, I have been asked to reply to your recent question asking what estimate has been made of the average income of a household in Leeds, North-West constituency in the (a) private and (b) social rented sector in each of the last three years. (319496).
The information requested is not available.