The personnel numbers are basically as you indicated. On a ship, you would have those who are going to be providing some sort of overhead or indirect activity. That could be determined by the expenditure data we receive, which we could map into something called “the frigate”, which would have its own specific cost centre or data point.
The personnel one was a bit of a challenge for us. We had to actually use other external information as well, beyond DND, just to make sure that those numbers we're using are also publicly available and comparable. While the methodology you described is essentially the same as what I described, there might be some nuances in terms of making sure that it's part of the publicly available information.
Sometimes you might have some extra people who should have been labelled as base employees, or sometimes the first direct maintenance work that is done for the ship when they are on board or travelling would be tagged to a base or a fleet maintenance facility personnel, so we have to make some adjustments on that.