asked the Secretary of State for Social Services what is his latest estimate derived from the 1975 family expenditure survey data of the total amount of all social security benefits unclaimed; and what is his latest estimate of the percentage take-up of all benefits made available by his Department.

I regret that information about take-up of benefits from the 1975 Family Expenditure Survey is not yet available. I hope to have some information shortly and I will then publish it in the Official Report.