It's difficult to typify. If it's a half-hour debate, it's sometimes simply attended by the backbench member who has raised it and the government minister, sometimes accompanied by a whip or a PPS—in other words, a member who helps to assist him.
In longer debates, the 60-minute or 90-minute debates, you would normally expect seven or eight, and the opposition take part in those as well. There is an opposition front-bench spokesman—a shadow—plus the third party, because, like you, we have a third party. A third party shadow also takes part.
On Monday afternoons between 4:30 and 7:30 in our parallel chamber, we have debates on e-petitions, which are electronically submitted petitions that have reached generally more than 100,000 signatures. We've had about 20 of those. It's a novelty. Those have been quite well attended and, in some cases, very heavily attended.
For some of the hour-and-a-half debates, we may get 30 or 40 members. For example, if it's on the steel industry or on a particular region or issue, then the regional members are all likely to attend and may only have three or four minutes each to speak.