First, as others have said—actually, it might have been Damien Smith in his contribution, talking about the allocation of resources, and this is one of the important reasons that the data is collected. In the case of a census, it might not be obvious to those who haven't thought about these things from the point of view of the policy maker, or executive Government allocating resources on the basis of per head of population, but manipulated—and I don't mean that in the ugly sense, but the data being used in a way that makes sense. Of course, we need to know where people are and some key basic details about them as well, and so, of course, it's a highly important exercise for that, and not merely a matter of interest to obtain statistical data.