Do you mean the production of the waste and what happens to that waste when you demolish? Is that what you're referring to?
Right now when you do any renovations, you do a hazardous material assessment of your building before you even engage a contractor. That audit of the asset becomes kind of the foundation for what you're going to do. I would say that our industry—and I'm sure some of it is driven by regulation—has adapted. I don't have any percentages or numbers for you, but certainly the industry is focused on what happens to that when we do a renovation versus what would happen if we tore down and started new. The argument is always for renovation, though, I have to say, but you might build on top.