We have a system of classifying jobs; it tends to be as 1, 2, 3, 4, 5, 6. Work that was being done by someone at level 3 three years ago now somehow mysteriously needs a level 4. I manage an organization too, so I'll ask, why does this need a level 4? “It needs a level 4 because otherwise I can't get anybody.”
It's this kind of thing that has occurred in the system, and if you see the distribution of how many are at each level, the level 1s have almost disappeared; we hardly have any level 1s left. But if you look at the distributions of level 2s, 3s, 4s, and 5s and how these have gone over time, you'll see that there's just an increase, and I don't think the work has changed to that extent.