Thanks to all who replied on this.  Yes, I had thought of adding up
the size of the weekly logs, but doing that with over eight hundred
of them is a daunting task, at least to me.

I guess the answer is there is no easy way for the listowner to come
up with this info by himself.

Fortunately, my listserv postmaster did look up the info for me (I knew
he would, just didn't know how long it would take).

Thanks again.

Douglas Winship     [log in to unmask]