If you still have the server log files for the entire time period, I suppose you could write a program to parse through all that picking out the subscribe/add and unsubscribe/remove activity, and accumulate daily/weekly/monthly membership counts for each interval as you go.

Or you could just find the lines where it reports distribution statistics for each mailing, and grab the recipients counts from those - this would be a lot simpler than counting subscribers joining and leaving.

>>> [log in to unmask] 08/22/01 01:47PM >>>
They are concerned only about the numbers who received the mailings each
week.
----- Original Message -----
From: "Pete Weiss" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, August 22, 2001 1:34 PM
Subject: Re: List Growth


> At 12:47 08/22/2001 Wednesday, Margaret Brandt wrote:
>  >Someone in my organization would like to know, in six month increments,
>  >how fast a list as grown over 5 years.  Is there a table or log that
would
>  >have this information on a particular list within LISTSERV?
>  >
>  >
>  >Margaret Brandt
>  >[log in to unmask] 
> End Reply
>
> Say you have a list with 100 folks at the beginning of the year, and 100
> folks at the end of the year, though five subscribed and five
> unsubscribed.  What is the statistic that describes that?
>
> Now four subscribers have left their mail account, but it is still
> receiving w/o bounces?
>
> How many are set to NOMAIL (beginning and end-of-year)?  Are they reading
> through the WEB interface?
>
> Average number of postings per NOMAIL userid?
>
> What was the (definition of) value of the list to the subscribers or
> organization?
>