Of course I understand these stats just are what they are, and won't answer every question.
But looking at them, what I can't 'get' is how the big agencies can maintain that 25 cents is not only a fair commission, but the best they can do given the market realities. With subscriptions, they've really completely hidden what a buyer pays - we don't know what the subscription cost, we have no way to assign a 'price' to an individual download. The word 'commission' doesn't mean anything in that context. It's just a crumb tossed our way, as a nice little thank-you, I guess. Probably in the future it will be replaced with a congratulatory email, automatically generated.