Thank you.
Okay. We're going to move on now to talk about the impact of PDG on attainment. Hefin David has got some questions.
It appears that the attainment gap at 2017 has actually widened, in spite of PDG levels. Is that correct?
Yes. So, if you look at it—with the usual caveats about whether you can make direct comparisons on level 2 plus between the exams the year before and the exams that we had last summer—on the face of it, the gap has increased. I think what's important to recognise, Hefin, is a direction of travel. I'm sure we all want to, because I want to, have a discussion about why children on free school meals were less resilient in the exam system last year. But, if we look at the period that we have been employing PDG, over that period, we have seen a narrowing of the gap. I think what's quite stark, if we think about it—. So, if we look at where we started from: in 2009, one in five children on free school meals got level 2 plus—one in five—by 2016, we had got that down to one in three. Obviously, there's still a way to go, but, Sir Alasdair, who knows about these things, says that that is a significant improvement. Last year, we got some challenges. We need to understand why that happened, but I do think it's—