To ask the Secretary of State for Social Security if he will publish a table showing the numbers of lower-paid families with and without children, whose marginal tax rates including benefit withdrawal will be (a) 90 to 100 per cent., (b) 80 to 90 per cent., (c) 70 to 80 per cent., (d) 60 to 70 per cent., (e) 50 to 60 per cent. and (f) 40 to 50 per cent., taking into account the tax changes for 1991–92.

The information requested is set out in the table.

Marginal Deduction Rates Including Social Security Numbers with marginal deduction rates within each range (thousands) Great Britain
Per Cent.	Families with children	Others
190 to 99	50	0
80 to 89	130	15
70 to 79	140	50
60 to 69	0	5
50 to 59	0	0
40 to 49	5	15

Figures are based on pooled Family Expenditure Survey data.Calculated for benefit units in receipt of income-related benefits where at least one partner works 24 hours per week or more.