Onside Kick Follow up

I noted earlier that in the MAC there were 7 onside kicks recovered in 18 attempts, which seemed like a lot to me.

I compared it to the SEC. Teams in the SEC allowed 4 recovered onside kicks in 15 attempts, a lower rate, but with small numbers not as big a difference as it might seem. I'm surprised. Apparently, recovering the onside kick is more common than I thought.