Total Bandwidth reporting & archiving

Looking at the bandwidth reports in the Live Demo, I don't see any way to get Total Bandwidth per month (in GBytes) and monthly in/out rates with a 95th percentile calculation (Gbps). Having these statistics helps in a very real way to know that the ISP is correctly calculating/billing bandwidth useage. It would be nice to have the end of month stats archived for 12 or 24 months so that trends can be viewed as well.

How can I go about generating such a report, or is the functionality not there? I currently have a Perl script running with MRTG/RRD which provides those features but we'd like to replace that system with something that could give us more detailed information... Like during a heavy traffic period, which hosts and protocols were generating the bulk of the traffic? (which your software seems to do.)

These bandwidth totalling features can be worth thousands of dollars in avoided bandwidth costs if the ISP is in error. That's a very convincing argument to management to spend money on the software and the feature is relatively simple to implement.

So I guess I'm asking did I just miss it, or is it not currently possible?

Thanks,
Alan