Dear Mr. Axelson,

That is a point well taken, and illustrative both of the care that must be taken not to "overinterpret" the data we have, and of the value, perhaps, of obtaining more detailed data. While it does yet seem to me that the bulk of the variation probably has to do with members (who are generally the bulk of attendees), your wording is, indeed, the more precise.

Thank you for your careful attention to the article, and for sharing this helpful adjustment.