Light Dues

My hon. Friend is making some valuable points, some of which the Department for Transport could make to the Irish Government. On that last point, there is a general economic pressure, of which dues are not a part, to reduce direct calls. However, just in case he is thinking of linking the question of direct calls to the cost of light dues, does he have an economic analysis of how much calls increased as light dues, in effect, halved in real terms over the past two years?