Yes, I could answer that.
It's a combination of a number of indicators. That's a very strong one. Once the refusal rate is below 3% or 4%--don't quote me on that, but it's something in that range--that's one of the factors. We could provide the information from our policy sector.
Another factor would have to do with the number of refugee claims from that...countries. Then there's how many removals we had to do for various reasons, whether it's non-compliance to immigration issues or with regard to criminality, for instance.
So it's a combination of indicators that allow the government to essentially make a decision to remove a visa or, in reverse, to impose a visa as was done for the Czech Republic and Mexico two years ago.