for the 2008 one we produced 2,262 tickets which was more than the 2,000 we wanted to accommodate as that would have been more comfortable for the Cathedral. But we could have gone to 2,262. We knew everyone from the ship would not go (and know for a fact that many did not bother in 2007 and 2008) but we did not keep a tally of those who actually turned up. Everyone was assigned to a block and those blocks were filled from the front to the back and we had time built in to move people forward if a certain block didn't fill so only the very back rows would remain empty.
In 2007 we produced 2,240 tickets.
In 2011 we produced 2,117 tickets.
In 2015 we produced 2,000 tickets for each of the two concerts that day.
Thanks to (interfering) management the actual ticketing process for all four concerts was different each time so it was difficult to have a system of keeping track of attendees.