But my final question, and this is also very profound, is in relation to the phrase "1 week", because in "weekly periods", which is one of the defined items, we hear that this is the number of periods of one week. I wonder if the Minister can explain what one week means in this context. Is it the European idea of a week, which is Monday to Sunday; is it Sunday to Monday, as in US, Canada, Brazil and Japan; or is it perhaps a more straightforward seven days in the Craig David sense of the phrase? I know the Minister gets that reference; he's old enough but not too old, I'm sure. But it is actually a relevant question. You know, it's definitely around the edges, but then again, this whole thing is. The seven-day period could start on 1 April, it could start on 1 July, and depending on what the calendar's doing at that particular time, that might make a difference, albeit small. So I'd be grateful if the Minister can enlighten us on that point.