Arena Football League:

Average attendance for AFL games were around 10,000–11,000 per game in the 1990s, though during the recession connected to the dot-com bubble and the September 11, 2001 attacks average attendance dropped below 10,000 for several years. From the start of the 2004 season until the final season of the original league in 2008, average attendance was above 12,000, with 12,392 in 2007. Eleven of the seventeen teams in operation in 2007 had average attendance figures over 13,000. In 2008, the overall attendance average increased to 12,957, with eight teams exceeding 13,000 per game.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". In 2008, what was the average attendance for an AFL game?
12,957