(Didn't vote.)
Probably an average of "Zero, up to several times a week."
No, that's not a range from Zero to several times a week: instead, the "Zero" itself happened several times a week: There was no face-to-face at all, but I did post my Play-By-Post actions several times a week, first on Yahoo! Groups and then here on EN World.
Number of extensive meeting sessions: 0
Number of actions: Many