I think that's one of the measures. I think the other is the one Mr. Glover responded to earlier, and that's what's getting in the human health. This is an act to protect the environment and human health.
One of the things the department is not very good at, frankly, is we collect a lot of data and we're not very good at disseminating it and explaining it. So we have a lot of data about trends with respect to the emissions of substances under the NPRI, and there are dozens of substances, and in fact for the vast majority of substances tracked under the NPRI the trend is a reduction over time. There are some for which emissions are increasing.
So I think the answer has to be on a case-by-case basis. We've done well on some, on others either we haven't managed them, we haven't managed them adequately, or industrial output or consumption has just increased and offset the reduction measures that we've put in place. I don't think, frankly, it's all that helpful to look at an aggregate number and say overall, on average, NPRI emissions have gone down or up.