Actually, in the last few years, we have done better than in the rest of my career. Our basic commitment, for somebody whom we sponsor through university to become a physician, is four years after they qualify. It used to be that at least 80% of those who came up to that point left.
I do not have the exact figures—I can get them from my staff—but it's now much lower than that. In fact, in this year coming up we are going to be in the position of telling people who want us to sponsor them through medical school that we have too many and are not going to offer them sponsorship. We may, in the next couple of years, come up against what we call “career gates”, a decision to offer people new contracts and not offer people extension of terms of service.