Excellent.
I have one last thing I want to ask you about. As you know, I've been developing an interest in the audit process, and it would be really helpful for me to know, taking this air quality index as an example, how much money it has cost the government to come up with this program. Do you have any way to assess the benefits for us? In other words, can you help me perform a cost-benefit analysis beyond just the obvious political calculation that clean air is good? What is the cost of this program, and how do we assess the benefits?
Thank you.