The story about attendance is very weird. Everyone said (both on and off the record) that there were no tickets left in the ticket office, which might as well be true, but it did not transform into good attendance.
From what I've gathered, most of the tickets were distributed among local people, but in an absolutely random fashion. Like people from one company getting tickets to first day of the competition, while the people who work at another company got those for the second day. The place is a military camp with several checkpoints to go through (think airport security level, which is kind of understandable, but still), so there was a lot of hassle just to get to the venue. You could not walk to it, you could not drive to it and the only way to get to Iceberg for a spectator was to get on a dedicated shuttle bus in downtown. Apparently, plenty of people thought that it is too inconvenient to begin with (they had a fixed route and with the town in a total gridlock, getting to the pick up point might not have been that easy) and then, from what I have heard, it was really poorly handled to day 1, so the word on the street must have been 'stay away from it'.
Which resulted in absolutely absurd situation: there were people who attended on Day 1, actually loved what they saw and were willing to pay to come back, but there was no way to buy tickets
I have not seen official figures on attendance, though.