The short answer is no. There's quite a bit of difference when we think about public testing, because we tend to be looking at trying to understand the system, as opposed to trying necessarily to find quick answers. As a whole, we tend to look a little bit more at those variability pieces. That said, there are private companies now that are increasingly recognizing the importance of that variability, particularly when we think about precision agriculture as an important tool that we can implement so that we're not applying excess fertilizer across the whole field. We're applying it where it has the most impact and the least likelihood of being lost through nitrous oxide, for example, or through leaching.
I think that as the viability and impact of those continue to grow, we're going to see more of that appropriate landscape-focused sampling take place, but, at this point, I would say it's fairly disparate.