Yeah there was a thread started by someone some time ago collecting such data but then IG changed the values of GE and I don't know what became of that thread, someone might recall where it is though but I haven't seen it since I've been back. I would like to see what it is for all ages and encounters.
edit: jeez, the changes were a lot longer ago than I thought
Guild Expeditions Changes - Continuation I searched for a while on here for that post of data but couldn't find it, sry.