To answer your first question about the data sources, that's exactly what we do all the time when we do costing. That's why it's in one of the slides you identified.
Believe me, sometimes we have a request from parliamentarians or committees and we say we don't have the data, so it's just impossible. I don't know about this case, but if we do the costing, then we will do this type of survey.
On your other question, we do have a profile of those who are low-income and not middle class. We don't talk about middle class. We talk about low incomes and so on. That will be part of the parameters that we will use. We did other studies on that, and that will be part of the costing. Those are easier to get in terms of information and data.
The other part of your question about who is covered, and so on. There are some firms—you mentioned Brogan, for example—that we can pay and then see what quality of data they can provide.