Interesting stuff. If you ignore the mid-week games, the averages are going up steadily each year, and reached 20,977 this year. Sellouts for Saturday games in Peden are getting closer to reality.
I also note that FCS games do not show any drop in attendance. In fact, Wofford, GW, and VMI were the highest attended games in their respective years. Interestingly, though, non-BCS FBS games were poorly attended, with lower turnouts for both Louisiana Lafayette and Wyoming.
That first 15,000 wasn't a mid-week game. It was the Halloween game against Louisiana. Looking at that number compared to the other Saturdays cements the fact that we shouldn't schedule home games on Halloween.
The Wofford and GW games were the season openers and VMI was homecoming. Clearly it doesn't matter who we schedule for those, they are always going to be highly attended. Wofford only drew 2000 less than UConn did in last year's opener.