 So there were certainly some cases where districts received similar amounts of money, but for whatever reason, one district made a lot more gains than the other. We don't really know why. I mean, this person I talked to, I think, would point to leadership or quality of teachers or decisions about which teachers to retain or which teachers to weed out. We don't, unfortunately, have much in the data to say, oh, these were the right spending decisions or the spending decisions that produced greater gains, unfortunately.