In terms of the data questions that Dr Reti raised, again, I think it would be fair to conclude that things have gotten better as we have gone along, and some of that early data-collection, as I think has been well canvassed, was not as good as it should have been. When I visited the border in Auckland about two weeks ago, I can now tell him that as everyone comes off a plane, before they even leave the airport they go and see someone from Health who finds their NHI, their National Health Index number, so that that's recorded right from the minute they basically set foot in New Zealand. That will certainly help with the data collection, because that number can then follow them all the way through. 