A year ago I ran several sessions of Rappan Athuk (using AS&SH for those sweet sub-classes) - 18 sessions out of a 26-session campaign, to be precise. The sessions were 2-3 hours long each, conducted over TeamSpeak. I kept notes and maintained an ugly master sheet for XP and mortality data, of which I was just reminded by a question on Reddit (How many XP do characters bring back per session in your games?).
My answer to the question lies in the document hereby shared for all of you kind readers to see.
Most of the stuff in there should be fairly obvious, but here are some notes: In the Overview tab the PC and NPC columns show the number of characters present at a particular session, whereas in the Mortality tab the Sum columns have the number of PCs/NPCs present up to that point combined for purposes of lethality calculations (given in the mW columns). In the XP tab the "Loot XP %" value notes that over the course of these 26 sessions about 60.69% of XP came from treasure.