The average number of households benefiting from either child or working tax credits in 2005-06, or receiving the equivalent support through out-of-work benefits, by constituency, is shown in “Child and Working Tax Credit Statistics. Finalised Annual Awards. 2005-06. Geographical Analyses”. This publication also includes average annual entitlement for 2005-06 and is available on the HMRC website at:
http://www.hmrc.gov.uk/stats/personal-tax-credits/cwtc-geog-stats.htm
The publication referred to shows that there were around 9.5 thousand families benefiting from child and working tax credits in the City Of York constituency in 2005-06. It also shows that the average annual entitlement to these families was £3,086.