So we'd probably want to find some type of an average to represent the central tendency for each of these. So once again, this is a statistical question. This is a statistical question. Does the most highly paid English professor at Harvard get paid more than the most highly paid math professor at MIT? Well, now we're talking about two particular individuals. You could go look at their tax forms, see how much each of them get paid. And especially if we assume that this is in a particular year, let's say, and let's just make it that way, say in 2013, just so that we can remove some variability that they might make from year to year, make it a little bit more concrete.