There are no restrictions, so there's no problem using the files. In
fact, I've been hoping that some additional projects like yours might
develop from this. An acknowledgement (which I see you have on the
page) is appreciated, of course, but not required.
--- In firstname.lastname@example.org
> I was wondering about the rules for using your data. I am working on
> a little query tool that allows "ordinary" people to get some reports.
> Am I ok to use the files here?
> To give you an idea of what I mean, I will show you the link here:
> This is very much a "beta" so please bear that in mind.