I am informed by the Revenue Commissioners that, because of the withdrawal of the general child tax allowance with effect from 6 April 1986, statistics are no longer available on which to base a reliable estimate of costs in this area. However, the commissioners tentatively estimate that the cost of restoring the allowance, at £100 per child, on the basis on which it formerly applied, that is to children under 16 years of age or over 16 years of age and in full-time education, would be in the region of £23 million in a full year. It is not possible to provide an estimate of any extra cost which would arise in respect of any additional children comprehended in the categories mentioned by the Deputy.