Rt Hon JACINDA ARDERN: Well, firstly, as I say, the majority of vaccines are still in some form of clinical trial. So it is highly speculative as to when different countries will expect arrival dates, and, as I say, other leaders I've spoken to are speculating themselves. In terms of New Zealand's time lines, we are still negotiating. We have already announced advance purchase arrangements with two companies—with two pharmaceutical companies. We are in commercially sensitive negotiations with others. As they are announced, we of course share those details. What I'm looking to do is, before Christmas, try and give a bit more certainty around what our current expectations are. But, as I've already said, they're not all arriving at the same time. We expect smaller amounts of doses in the first instance, and we will need to sequence, then, vaccination across the country over the course of the year. 