convert to mbps
Added the total size. This is a high upper limit as it only considers
the full size of the file, not the actual response size. Since the logs
don't include the full range (just the bytes sent), it's impossible to
know if a response is a duplicate from another just by the size of the
actual response. At best, such a number would give us a minimum size.
That isn't too useful. The maximum size isn't that useful either, but
it's slightly more useful...