I can start if you like.
On the question regarding how data has to be free and what the costs are of opening up data, our costs depend on the size of the data set and what has to be done in the conversion. They're relatively modest. They're being borne by the ministries and they're being absorbed as part of their normal operations. We're looking now at changing systems. New systems are being installed so that the data element can be stripped out, cells can be totally compressed if they need to be or they can be eliminated altogether if the sample sizes are too small. They can be auto-published to a portal. That's the vision in the interim costs. Is there any sense of magnitude of cost?